SAPONIFY
saponify
(verb) convert into soap by hydrolizing an ester into an acid and alcohol as a result of treating it with an alkali; “saponify oils and fats”
saponify
(verb) become converted into soap by being hydrolized into an acid and alcohol as a result of being treated with an alkali; “the oil saponified”
Source: WordNet® 3.1
Etymology
Verb
saponify (third-person singular simple present saponifies, present participle saponifying, simple past and past participle saponified)
(transitive) To convert (a fat or oil) into soap.
(intransitive) To be converted into soap.
(transitive, chemistry) To hydrolyze (an ester) using an alkali.
Source: Wiktionary
Sa*pon"i*fy, v. t. [imp. & p. p. Saponified; p. pr. & vb. n.
Saponifying.] Etym: [L. sapo, -onis, soap + -fy: cf. F. saponifier.]
Definition: To convert into soap, as tallow or any fat; hence (Chem.), to
subject to any similar process, as that which ethereal salts undergo
in decomposition; as, to saponify ethyl acetate.
Source: Webster’s Unabridged Dictionary 1913 Edition