a combining form used in the names of chemical compounds containing the ester or > C=O group of the compound specified by the initial element: benzoate.
[ -o ( ic ) (as in benzoic ) + -ATE 2 ]
-OATE
Meaning of -OATE in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012