OXIDATE
oxidize, oxidise, oxidate
(verb) add oxygen to or combine with oxygen
oxidise, oxidize, oxidate
(verb) enter into a combination with oxygen or become converted into an oxide; “This metal oxidizes easily”
Source: WordNet® 3.1
Etymology
Verb
oxidate (third-person singular simple present oxidates, present participle oxidating, simple past and past participle oxidated)
(dated, chemistry) To oxidize.
Noun
oxidate (plural oxidates)
(dated, chemistry) An oxide.
Source: Wiktionary
Ox"i*date, v. t. [imp. & p. p. Oxidated; p. pr. & vb. n. Oxidating.]
Etym: [Cf. f. oxyder. See Oxide.] (Chem.)
Definition: To oxidize. [Obs.]
Source: Webster’s Unabridged Dictionary 1913 Edition