Source etymology 1 · variant 1/3
Original entry ↗adj
Selected source glosses provide context, not a complete modern definition inventoryHaving no variations in height. · In a horizontal line or plane; not sloping. · Smooth; having no protrusions, indentations or other surface irregularities, or relatively so. · Having small or invisible breasts and/or buttocks.
Etymology tree Proto-Germanic *flataz Old Norse flatrbor. Middle English flat English flat From Middle English flat, a borrowing from Old Norse flatr (compare Norwegian and Swedish flat, Danish flad), from Proto-Germanic *flataz, from Proto-Indo-European *pleth₂- (“flat”); akin to Saterland Frisian flot (“smooth”), German Flöz (“a geological layer”), Ancient Greek πλατύς (platús), Latvian plats, Sanskrit प्रथस् (prathas, “extension”). Doublet of plat and pleyt. The noun is from Middle English flat (“level piece of ground, flat edge of a weapon”), from the adjective. The algebraic sense was coined by Serre in a 1956 paper, originally as French plat.
Relationships mentioned by the source
These are extracted mentions, not a timeline or a verified sequence of immediate parents.
- Root classification mention*pleth₂-ine-pro
- Inherited-form mentionflatenm
- Derivation mentionflatrnon
- Cognate mentionflatsv
- Cognate mentionfladda
- Derivation mention*flatazgem-pro
- Derivation mention*pleth₂-ine-pro
- Cognate mentionflotstq
- Cognate mentionFlözde
- Cognate mentionπλατύςgrc
- Cognate mentionplatslv
- Cognate mentionप्रथस्sa
- Doublet mentionplaten
- Doublet mentionpleyten
- Inherited-form mentionflatenm · level piece of ground, flat edge of a weapon
- Derivation mentionplatfr
This page abbreviates 26 auxiliary source items. The etymology narrative is not shortened. Omission counts are available in the audit fields below; consult the original for complete auxiliary material.
Inspect preserved source fields
Raw extraction fields are retained for auditing. Their order does not establish ancestry.
{
"templates": [
{
"name": "etymon",
"args": {
"1": "en",
"2": ":inh",
"3": "enm:flat",
"id": "level",
"tree": "1"
},
"expansion": "Etymology tree\nProto-Germanic *flataz\nOld Norse flatrbor.\nMiddle English flat\nEnglish flat\n[Appendix:Glossary#loanword|Borrowed]] from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Proto-Germanic\", \"term\" : \"*flataz\", \"status\" : \"missing\", \"lang\" : \"gem-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Old Norse\", \"term\" : \"flatr\", \"status\" : \"ok\", \"lang\" : \"non\" } ], \"keyword\" : \"bor\" } ], \"lang_name\" : \"Middle English\", \"term\" : \"flat\", \"status\" : \"ok\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"English\", \"term\" : \"flat\", \"lang\" : \"en\" }\" data-id=\"level\" data-lang=\"en\" data-title=\"flat\" id=\"English:_level\">"
},
{
"name": "root",
"args": {
"1": "en",
"2": "ine-pro",
"3": "*pleth₂-"
},
"expansion": ""
},
{
"name": "inh",
"args": {
"1": "en",
"2": "enm",
"3": "flat"
},
"expansion": "Middle English flat"
},
{
"name": "der",
"args": {
"1": "en",
"2": "non",
"3": "flatr"
},
"expansion": "Old Norse flatr"
},
{
"name": "cog",
"args": {
"1": "sv",
"2": "flat"
},
"expansion": "Swedish flat"
},
{
"name": "cog",
"args": {
"1": "da",
"2": "flad"
},
"expansion": "Danish flad"
},
{
"name": "der",
"args": {
"1": "en",
"2": "gem-pro",
"3": "*flataz"
},
"expansion": "Proto-Germanic *flataz"
},
{
"name": "der",
"args": {
"1": "en",
"2": "ine-pro",
"3": "*pleth₂-",
"4": "",
"5": "flat"
},
"expansion": "Proto-Indo-European *pleth₂- (“flat”)"
},
{
"name": "cog",
"args": {
"1": "stq",
"2": "flot",
"3": "",
"4": "smooth"
},
"expansion": "Saterland Frisian flot (“smooth”)"
},
{
"name": "cog",
"args": {
"1": "de",
"2": "Flöz",
"3": "",
"4": "a geological layer"
},
"expansion": "German Flöz (“a geological layer”)"
},
{
"name": "cog",
"args": {
"1": "grc",
"2": "πλατύς"
},
"expansion": "Ancient Greek πλατύς (platús)"
},
{
"name": "cog",
"args": {
"1": "lv",
"2": "plats"
},
"expansion": "Latvian plats"
},
{
"name": "cog",
"args": {
"1": "sa",
"2": "प्रथस्",
"3": "",
"4": "extension"
},
"expansion": "Sanskrit प्रथस् (prathas, “extension”)"
},
{
"name": "doublet",
"args": {
"1": "en",
"2": "plat",
"3": "pleyt"
},
"expansion": "Doublet of plat and pleyt"
},
{
"name": "inh",
"args": {
"1": "en",
"2": "enm",
"3": "flat",
"t": "level piece of ground, flat edge of a weapon"
},
"expansion": "Middle English flat (“level piece of ground, flat edge of a weapon”)"
},
{
"name": "der",
"args": {
"1": "en",
"2": "fr",
"3": "plat"
},
"expansion": "French plat"
},
{
"name": "etymon",
"args": {
"1": "en",
"2": ":inh",
"3": "enm:flat",
"id": "level",
"tree": "1"
},
"expansion": "Etymology tree\nProto-Germanic *flataz\nOld Norse flatrbor.\nMiddle English flat\nEnglish flat"
}
],
"links": [
[
"*flataz",
"Reconstruction:Proto-Germanic/flataz"
],
[
"flatr",
"flatr#Old_Norse"
],
[
"flat",
"flat#Middle_English"
],
[
"flat",
"flat#Middle_English"
],
[
"flatr",
"flatr#Old_Norse"
],
[
"flat",
"flat#Swedish"
],
[
"flad",
"flad#Danish"
],
[
"*flataz",
"Reconstruction:Proto-Germanic/flataz"
],
[
"*pleth₂-",
"Reconstruction:Proto-Indo-European/pleth₂-"
],
[
"flot",
"flot#Saterland_Frisian"
],
[
"Flöz",
"Flöz#German"
],
[
"πλατύς",
"πλατύς#Ancient_Greek"
],
[
"plats",
"plats#Latvian"
],
[
"प्रथस्",
"प्रथस्#Sanskrit"
],
[
"plat",
"plat#English"
],
[
"pleyt",
"pleyt#English"
],
[
"flat",
"flat#Middle_English"
],
[
"plat",
"plat#French"
]
],
"references": [],
"descendants": [
{
"lang": "Portuguese",
"lang_code": "pt",
"word": "flat",
"raw_tags": [
"borrowed"
]
}
],
"lexical": [
{
"pos": "adj",
"glosses": [
"Having no variations in height.",
"In a horizontal line or plane; not sloping.",
"Smooth; having no protrusions, indentations or other surface irregularities, or relatively so.",
"Having small or invisible breasts and/or buttocks."
],
"tags": [
"slang"
],
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],
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"lexicalSenses": 26,
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