[acet-] or aceto- comb form [F & L; F acet-, fr. L acet-, fr. acetum vinegar; akin to acere to be sour, acer sharp--more at edge]: acetic acid: acetic "acetyl"
ACET-
Meaning of ACET- in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012