ninety.
The cardinal number occurring after eighty-nine and before ninety-one, represented in Roman numerals as XC and in Arabic numerals as 90.
Meaning & usage
The cardinal number occurring after eighty-nine and before ninety-one, represented in Roman numerals as XC and in Arabic numerals as 90.
Where this word comes from
From Middle English nynty, nynety, from Old English hundniġontiġ, from Proto-Germanic *newuntēhundą (“ninety”), equivalent to nine + -ty. Cognate with Scots nynty, nynety (“ninety”), Saterland Frisian njuugentich (“ninety”), West Frisian njoggentich (“ninety”), Dutch negentig (“ninety”), German Low German negentig (“ninety”), German neunzig (“ninety”), Swedish nittio (“ninety”), Norwegian Bokmål nitti (“ninety”), Norwegian Nynorsk nitti (“ninety”), Icelandic níutíu (“ninety”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.