acetate (n.)youdaoicibaDictYouDict[acetate 词源字典]
1827, "salt formed by combining acetic acid with a base," from Latin acetum "vinegar" (see acetic) + chemical suffix -ate (3). As a type of synthetic material, it is attested from 1920, short for acetate silk, etc.[acetate etymology, acetate origin, 英语词源]