English
acetoin
aceto- + -in
A compound of aceto- + -in
Proto-Indo-European *h₂eḱ- ‘sharp’
…
Proto-Italic *akēō
Latin aceō ‘to be sour’
Latin acēscō ‘to become sour, to turn sour’
Latin acētum ‘vinegar’
English aceto-
Today it means
noun The compound 3-hydroxybutanone CH₃-CO-CH(OH)-CH₃ that is one of the constituents of the flavour of butter
Language periods are conventional ranges, not dates for this word.
Etymograph / acetoin