Acetyl.
acetyl group (-COCH₃; C₂H₃O)
Meaning & usage
acetyl group (-COCH₃; C₂H₃O)
Where this word comes from
Etymology tree Proto-Indo-European *h₂eḱ- Proto-Indo-European *-éh₁ti Proto-Indo-European *-yeti Proto-Indo-European *-éh₁yeti Proto-Indo-European *h₂eḱéh₁yeti Proto-Italic *akēō Latin aceō Proto-Indo-European *-sḱéti Proto-Italic *-skō Latin -scō Latin acēscō Proto-Indo-European *-tós Proto-Italic *-tos Latin -tus Latin acetumder. Proto-Indo-European *swel-der.? Ancient Greek ῡ̔́λη (hū́lē)der. German -yl German Acetyl From Latin acetum (“vinegar”) and Ancient Greek ὕλη (húlē, “stuff, material, substance”).
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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.