Spelling record · free access

Leif

One spelling. All preserved contexts.
Read claims alongside their sources.

Script: Latin
Compound status: Unknown
In this record: Relationships: 3 · observations: 18

Candidate data 1.0.0. Unknown values have not been filled with guesses.

Language information

Dictionary information and other contexts are kept separate. A statistical territory does not establish the language of a name; a classification does not determine a person's gender.

Dictionary contexts

None provided for this spelling in this version.

Other contexts

Language	Gender in source	Basis	Evidence
Not specified	Male	Source classification	Evidence Language: Not specified. Source category: Male. Basis: Source classification. This is a source claim, not a statement about a particular person. Open source and technical details → Technical details and JSON Original claim { "basis": "source_classification", "context_id": "ctx:4f4f57d6-16a4-5a13-9926-8f031ad73e34", "country": null, "evidence_id": "ev:166a7518-8cbb-5cb9-b4d4-cf491312fdd3", "form_id": "frm:add077b7-4f5e-5867-b527-d69b8463dfe1", "gender": "male", "language": null } All claims and sources — go to this entry →
Source language (see details)	Not specified	Usage evidence	Evidence Language: Source language (see details). Source category: Not specified. Basis: Usage evidence. This is a source claim, not a statement about a particular person. Open source and technical details → Technical details and JSON Original claim { "basis": "usage_evidence", "context_id": "ctx:e6b8bcfe-19b5-58bc-840c-3e2a4d0f3cc1", "country": null, "evidence_id": "ev:9a8e1079-a89c-5c4e-90f7-e4687f69b4d0", "form_id": "frm:add077b7-4f5e-5867-b527-d69b8463dfe1", "gender": "unknown", "language": "wikidata:Q106085" } All claims and sources — go to this entry →
Not specified	Male	Birth statistics	Evidence Language: Not specified. Source category: Male. Basis: Birth statistics. This is a source claim, not a statement about a particular person. Open source and technical details → Technical details and JSON Original claim { "basis": "official_birth_statistics", "context_id": "ctx:9d191fd7-30fd-53f9-876b-335a371ac193", "country": "DE", "evidence_id": "ev:4bd6b65e-c094-55c7-a253-3dce1d1c2019", "form_id": "frm:add077b7-4f5e-5867-b527-d69b8463dfe1", "gender": "male", "language": null } All claims and sources — go to this entry →

Related spellings

Every relationship has a direction and type. Source-reported equivalence does not imply universal interchangeability.

Relationships: 3

From	To	Type	Evidence
Leif	Leiv	Source-reported equivalence	Evidence The source reports a relationship of type «Source-reported equivalence». The direction is shown in the table row. Open source and technical details → Technical details and JSON Original claim { "evidence_id": "ev:67023507-fb2e-5f3a-acce-1a9267944c4b", "from_form_id": "frm:add077b7-4f5e-5867-b527-d69b8463dfe1", "language": null, "link_id": "lnk:bc42619d-34f4-5a5a-8fdd-faf7ff8b8661", "position": null, "relation": "source_equivalence", "scheme": null, "to_form_id": "frm:b1a21c12-2853-5e2a-aa20-3d9b53da7b5a" } All claims and sources — go to this entry →
Leif	Leifur	Source-reported equivalence	Evidence The source reports a relationship of type «Source-reported equivalence». The direction is shown in the table row. Open source and technical details → Technical details and JSON Original claim { "evidence_id": "ev:34bd6a39-cce0-5f0e-b888-3176ac3c32ce", "from_form_id": "frm:add077b7-4f5e-5867-b527-d69b8463dfe1", "language": null, "link_id": "lnk:460814df-dc6d-59e8-aa60-841666e8f6e5", "position": null, "relation": "source_equivalence", "scheme": null, "to_form_id": "frm:3876dc76-118c-5664-a3ee-439f1f9856e4" } All claims and sources — go to this entry →
Leif	Lejf	Source-reported equivalence	Evidence The source reports a relationship of type «Source-reported equivalence». The direction is shown in the table row. Open source and technical details → Technical details and JSON Original claim { "evidence_id": "ev:9c6fbc8b-c983-5890-a857-9ba4a373500d", "from_form_id": "frm:add077b7-4f5e-5867-b527-d69b8463dfe1", "language": null, "link_id": "lnk:3588fc58-85ef-5c02-8fa7-6d0e5a60ce49", "position": null, "relation": "source_equivalence", "scheme": null, "to_form_id": "frm:e0530025-f28d-517f-a406-4ed338453b69" } All claims and sources — go to this entry →

From

Type

Evidence

Leif

Leiv

Source-reported equivalence

Evidence

The source reports a relationship of type «Source-reported equivalence». The direction is shown in the table row.

Open source and technical details →

Technical details and JSON

Original claim

{
    "evidence_id": "ev:67023507-fb2e-5f3a-acce-1a9267944c4b",
    "from_form_id": "frm:add077b7-4f5e-5867-b527-d69b8463dfe1",
    "language": null,
    "link_id": "lnk:bc42619d-34f4-5a5a-8fdd-faf7ff8b8661",
    "position": null,
    "relation": "source_equivalence",
    "scheme": null,
    "to_form_id": "frm:b1a21c12-2853-5e2a-aa20-3d9b53da7b5a"
}

All claims and sources — go to this entry →

Leif

Leifur

Source-reported equivalence

Evidence

The source reports a relationship of type «Source-reported equivalence». The direction is shown in the table row.

Open source and technical details →

Technical details and JSON

Original claim

{
    "evidence_id": "ev:34bd6a39-cce0-5f0e-b888-3176ac3c32ce",
    "from_form_id": "frm:add077b7-4f5e-5867-b527-d69b8463dfe1",
    "language": null,
    "link_id": "lnk:460814df-dc6d-59e8-aa60-841666e8f6e5",
    "position": null,
    "relation": "source_equivalence",
    "scheme": null,
    "to_form_id": "frm:3876dc76-118c-5664-a3ee-439f1f9856e4"
}

All claims and sources — go to this entry →

Leif

Lejf

Source-reported equivalence

Evidence

The source reports a relationship of type «Source-reported equivalence». The direction is shown in the table row.

Open source and technical details →

Technical details and JSON

Original claim

{
    "evidence_id": "ev:9c6fbc8b-c983-5890-a857-9ba4a373500d",
    "from_form_id": "frm:add077b7-4f5e-5867-b527-d69b8463dfe1",
    "language": null,
    "link_id": "lnk:3588fc58-85ef-5c02-8fa7-6d0e5a60ce49",
    "position": null,
    "relation": "source_equivalence",
    "scheme": null,
    "to_form_id": "frm:e0530025-f28d-517f-a406-4ed338453b69"
}

All claims and sources — go to this entry →

Usage in statistics

Series differ in coverage and counting units. Values cannot be added together to measure global popularity.

SeriesObservations shown: 18

Territory	Year	Category	Name position	Count
United States	2025	Male	Not available	257
Germany	2023	Male	Not available	11
England and Wales	2025	Male	Not available	30
Cologne	2010	Male	Not available	4
Cologne	2011	Male	Not available	4
Cologne	2012	Male	Not available	3
Cologne	2013	Male	Not available	1
Cologne	2014	Male	Not available	3
Cologne	2015	Male	Not available	5
Cologne	2017	Male	Not available	3
Cologne	2018	Male	Not available	2
Cologne	2018	Male	Not available	1
Cologne	2019	Male	2	2
Cologne	2019	Male	1	1
Cologne	2020	Male	1	4
Cologne	2020	Male	2	1
Cologne	2021	Male	1	2
Cologne	2021	Male	2	1

An unspecified position is not treated as first position. Full counting units, methods and qualifications are preserved in the original data.

Observation technical details

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    {
        "country": "US",
        "global_name_gender_inferred": false,
        "method": "deterministic_sum_of_source_counts",
        "published_count": 257,
        "reported_sex": "male",
        "source_csv_rows": [
            2168020
        ],
        "source_ref": "US",
        "year": 2025
    },
    {
        "country": "DE",
        "global_name_gender_inferred": false,
        "method": "deterministic_sum_of_source_counts",
        "published_count": 11,
        "reported_sex": "male",
        "source_csv_rows": [
            144135,
            145869,
            147857,
            151362
        ],
        "source_ref": "DE",
        "year": 2023
    },
    {
        "country": "GB",
        "geography": "England and Wales",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "population_scope_ref": "boys-2025.xlsx:Notes!A6:B6",
        "published_count": 30,
        "published_rank": 1007,
        "rank_quality": "consistent_with_published_counts",
        "reported_sex": "male",
        "source_csv_rows": [
            20306
        ],
        "source_ref": "GB",
        "year": 2025
    },
    {
        "aggregation_allowed": false,
        "country": "DE",
        "evidence_id": "ev:4bd6b65e-c094-55c7-a253-3dce1d1c2019",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": null,
        "published_count": 4,
        "published_rank": null,
        "reported_sex": "male",
        "resolved_text": "Leif",
        "scope_note": "position_absent_repeated_keys_not_aggregated",
        "source_csv_rows": [
            848
        ],
        "source_observation_id": "obs:10ba17c7-d07e-5970-a120-388fdda0590b",
        "source_ref": "DE_KOELN_HISTORY",
        "source_reported_sex": "m",
        "source_text": "Leif",
        "text_method": "NFC",
        "unit": "published_name_count_position_unspecified",
        "year": 2010
    },
    {
        "aggregation_allowed": false,
        "country": "DE",
        "evidence_id": "ev:5745455d-be3f-51bf-aaaf-cb4a2fd95b7a",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": null,
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        "resolved_text": "Leif",
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        "source_csv_rows": [
            5890
        ],
        "source_observation_id": "obs:14722990-fec4-5601-8740-db50309a173f",
        "source_ref": "DE_KOELN_HISTORY",
        "source_reported_sex": "m",
        "source_text": "Leif",
        "text_method": "NFC",
        "unit": "published_name_count_position_unspecified",
        "year": 2011
    },
    {
        "aggregation_allowed": false,
        "country": "DE",
        "evidence_id": "ev:fd987142-d67d-5376-96c4-15b65722fddb",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": null,
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        "published_rank": null,
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        "resolved_text": "Leif",
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        "source_csv_rows": [
            11119
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        "source_observation_id": "obs:fd726a66-a0d4-52e7-9c68-c247ed44bb1c",
        "source_ref": "DE_KOELN_HISTORY",
        "source_reported_sex": "m",
        "source_text": "Leif",
        "text_method": "NFC",
        "unit": "published_name_count_position_unspecified",
        "year": 2012
    },
    {
        "aggregation_allowed": false,
        "country": "DE",
        "evidence_id": "ev:d4f7ac18-a4f3-51b9-a68c-c1523802df5e",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": null,
        "published_count": 1,
        "published_rank": null,
        "reported_sex": "male",
        "resolved_text": "Leif",
        "scope_note": "position_absent_repeated_keys_not_aggregated",
        "source_csv_rows": [
            18741
        ],
        "source_observation_id": "obs:aa70a76f-366c-5af1-aa3e-dea1f4d34658",
        "source_ref": "DE_KOELN_HISTORY",
        "source_reported_sex": "m",
        "source_text": "Leif",
        "text_method": "NFC",
        "unit": "published_name_count_position_unspecified",
        "year": 2013
    },
    {
        "aggregation_allowed": false,
        "country": "DE",
        "evidence_id": "ev:b8c851cb-f233-558a-a01b-cbb581af4975",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": null,
        "published_count": 3,
        "published_rank": null,
        "reported_sex": "male",
        "resolved_text": "Leif",
        "scope_note": "position_absent_repeated_keys_not_aggregated",
        "source_csv_rows": [
            21348
        ],
        "source_observation_id": "obs:cd855183-a1e4-5af1-8e10-3d295af67bec",
        "source_ref": "DE_KOELN_HISTORY",
        "source_reported_sex": "m",
        "source_text": "Leif",
        "text_method": "NFC",
        "unit": "published_name_count_position_unspecified",
        "year": 2014
    },
    {
        "aggregation_allowed": false,
        "country": "DE",
        "evidence_id": "ev:eb95a1c1-60f0-5e45-9d14-153c42fa62b9",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": null,
        "published_count": 5,
        "published_rank": null,
        "reported_sex": "male",
        "resolved_text": "Leif",
        "scope_note": "position_absent_repeated_keys_not_aggregated",
        "source_csv_rows": [
            26248
        ],
        "source_observation_id": "obs:cc2a7e25-b872-5cd6-a9a1-11a3343749f3",
        "source_ref": "DE_KOELN_HISTORY",
        "source_reported_sex": "m",
        "source_text": "Leif",
        "text_method": "NFC",
        "unit": "published_name_count_position_unspecified",
        "year": 2015
    },
    {
        "aggregation_allowed": false,
        "country": "DE",
        "evidence_id": "ev:e617bcb9-bdaa-5875-9d65-033eda1dea00",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": null,
        "published_count": 3,
        "published_rank": null,
        "reported_sex": "male",
        "resolved_text": "Leif",
        "scope_note": "position_absent_repeated_keys_not_aggregated",
        "source_csv_rows": [
            37889
        ],
        "source_observation_id": "obs:2f37c7af-1a4c-5cd4-a9af-6f4a803e869a",
        "source_ref": "DE_KOELN_HISTORY",
        "source_reported_sex": "m",
        "source_text": "Leif",
        "text_method": "NFC",
        "unit": "published_name_count_position_unspecified",
        "year": 2017
    },
    {
        "aggregation_allowed": false,
        "country": "DE",
        "evidence_id": "ev:9ff0b85b-d190-5b73-a82b-d0821dde77ed",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": null,
        "published_count": 2,
        "published_rank": null,
        "reported_sex": "male",
        "resolved_text": "Leif",
        "scope_note": "position_absent_repeated_keys_not_aggregated",
        "source_csv_rows": [
            45635
        ],
        "source_observation_id": "obs:f35a5fbd-69e2-50b2-b9ba-c28697321071",
        "source_ref": "DE_KOELN_HISTORY",
        "source_reported_sex": "m",
        "source_text": "Leif",
        "text_method": "NFC",
        "unit": "published_name_count_position_unspecified",
        "year": 2018
    },
    {
        "aggregation_allowed": false,
        "country": "DE",
        "evidence_id": "ev:cbb14ba8-e05d-565c-a0ba-de70689da9df",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": null,
        "published_count": 1,
        "published_rank": null,
        "reported_sex": "male",
        "resolved_text": "Leif",
        "scope_note": "position_absent_repeated_keys_not_aggregated",
        "source_csv_rows": [
            47248
        ],
        "source_observation_id": "obs:e87d7c75-b210-52c3-9e65-804e2ec4a74e",
        "source_ref": "DE_KOELN_HISTORY",
        "source_reported_sex": "m",
        "source_text": "Leif",
        "text_method": "NFC",
        "unit": "published_name_count_position_unspecified",
        "year": 2018
    },
    {
        "country": "DE",
        "evidence_id": "ev:b5c76c16-716d-5a76-a0c2-1f55e6f771a6",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": 2,
        "published_count": 2,
        "published_rank": null,
        "reported_sex": "male",
        "scope_note": "source_description_position_conflict",
        "source_csv_rows": [
            2132
        ],
        "source_observation_id": "obs:c7753710-e82b-5bd9-b6f8-761f534fd4d6",
        "source_ref": "DE_KOELN",
        "source_reported_sex": "m",
        "unit": "published_name_occurrences_at_position",
        "year": 2019
    },
    {
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        "evidence_id": "ev:4dd16b85-7416-51c0-8936-b9c4bacffd01",
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        "global_name_gender_inferred": false,
        "method": "source_reported",
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        "scope_note": "source_description_position_conflict",
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        "source_reported_sex": "m",
        "unit": "published_name_occurrences_at_position",
        "year": 2019
    },
    {
        "country": "DE",
        "evidence_id": "ev:d617b31b-6196-5fda-b01c-9d3dc086b517",
        "geography": "Köln",
        "global_name_gender_inferred": false,
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        "name_position": 1,
        "published_count": 4,
        "published_rank": null,
        "reported_sex": "male",
        "scope_note": "source_description_position_conflict",
        "source_csv_rows": [
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        ],
        "source_observation_id": "obs:6b0608ff-9313-5953-af10-d030a6b72680",
        "source_ref": "DE_KOELN",
        "source_reported_sex": "m",
        "unit": "published_name_occurrences_at_position",
        "year": 2020
    },
    {
        "country": "DE",
        "evidence_id": "ev:0cff1bd3-30e7-55ba-9337-de50bf5b2a16",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": 2,
        "published_count": 1,
        "published_rank": null,
        "reported_sex": "male",
        "scope_note": "source_description_position_conflict",
        "source_csv_rows": [
            13074
        ],
        "source_observation_id": "obs:5e2c9329-ac0c-5af7-869f-9ee6964a6fa9",
        "source_ref": "DE_KOELN",
        "source_reported_sex": "m",
        "unit": "published_name_occurrences_at_position",
        "year": 2020
    },
    {
        "country": "DE",
        "evidence_id": "ev:295f3e0e-0f77-5666-88f5-71bb3c0dbd05",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": 1,
        "published_count": 2,
        "published_rank": null,
        "reported_sex": "male",
        "scope_note": "source_description_position_conflict",
        "source_csv_rows": [
            15649
        ],
        "source_observation_id": "obs:15fbeb03-e017-5d81-be89-69781a215902",
        "source_ref": "DE_KOELN",
        "source_reported_sex": "m",
        "unit": "published_name_occurrences_at_position",
        "year": 2021
    },
    {
        "country": "DE",
        "evidence_id": "ev:0a4c80f3-b265-5617-b26f-e0390bae16b9",
        "geography": "Köln",
        "global_name_gender_inferred": false,
        "method": "source_reported",
        "name_position": 2,
        "published_count": 1,
        "published_rank": null,
        "reported_sex": "male",
        "scope_note": "source_description_position_conflict",
        "source_csv_rows": [
            19912
        ],
        "source_observation_id": "obs:a74023fc-a4ae-5541-ae1d-11fc9a1a4a4b",
        "source_ref": "DE_KOELN",
        "source_reported_sex": "m",
        "unit": "published_name_occurrences_at_position",
        "year": 2021
    }
]

Original statistical rows and notes →

A source behind every claim

Preserved evidence referenced by this record. Expand a description to view its source; original values are available in the technical details.

Usage context: Not specified · Male · Source classification

Open source and technical details →

Usage context: Source language (see details) · Not specified · Usage evidence

Open source and technical details →

Usage context: Not specified · Male · Birth statistics; Statistics: Cologne · 2010 · Male · count: 4 · name position: not specified

Open source and technical details →

Provenance of the record «Leif»

Open source and technical details →

Relationship «Leif → Leiv»: Source-reported equivalence

Open source and technical details →

Relationship «Leif → Leifur»: Source-reported equivalence

Open source and technical details →

Relationship «Leif → Lejf»: Source-reported equivalence

Open source and technical details →

Statistics: Cologne · 2011 · Male · count: 4 · name position: not specified

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Statistics: Cologne · 2012 · Male · count: 3 · name position: not specified

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Statistics: Cologne · 2013 · Male · count: 1 · name position: not specified

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Statistics: Cologne · 2014 · Male · count: 3 · name position: not specified

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Statistics: Cologne · 2015 · Male · count: 5 · name position: not specified

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Statistics: Cologne · 2017 · Male · count: 3 · name position: not specified

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Statistics: Cologne · 2018 · Male · count: 2 · name position: not specified

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Statistics: Cologne · 2018 · Male · count: 1 · name position: not specified

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Statistics: Cologne · 2019 · Male · count: 2 · name position: 2

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Statistics: Cologne · 2019 · Male · count: 1 · name position: 1

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Statistics: Cologne · 2020 · Male · count: 4 · name position: 1

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Statistics: Cologne · 2020 · Male · count: 1 · name position: 2

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Statistics: Cologne · 2021 · Male · count: 2 · name position: 1

Open source and technical details →

Statistics: Cologne · 2021 · Male · count: 1 · name position: 2

Open source and technical details →

Full record

All fields, including qualifiers, language qualifications, original codes and unknown values.

Open the full record JSON →

Field and compound-status provenance

{
    "field_evidence": [
        {
            "characters": " -‐‑–'’",
            "evidence_id": "ev:4583e343-d049-5853-b779-0aca1642ed33",
            "field": "contains_name_separator",
            "form_id": "frm:add077b7-4f5e-5867-b527-d69b8463dfe1",
            "method": "deterministic",
            "not_compound_classification": true,
            "rule": "character-presence-001",
            "value": false
        }
    ],
    "compound_claims": []
}

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