ípsilon.
The name of the Latin script letter Y/y.
Meaning & usage
The name of the Latin script letter Y/y.
upsilon (name of the Greek letter Υ, υ)
Where this word comes from
Learned borrowing from Latin ypsilon (“upsilon”), from Ancient Greek ὖ ψιλόν (û psilón, “upsilon”) (modern Greek ύψιλον (ýpsilon)), from ὖ (û) + ψιλός (psilós).
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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.