inebriate: [15] Latin ēbrius (a relative of sōbrius, from which English gets sober) meant ‘drunk’. From it was formed the verb ēbriāre ‘intoxicate’, which with the addition of the intensive prefix in- produced inēbriāre ‘make very drunk’ – whence English inebriate. => sober
inebriate (v.)
late 15c., from Latin inebriatus, past participle of inebriare "to make drunk," from in- "in" (see in- (2)) + ebriare "make drunk," from ebrius "drunk," of unknown origin. Related: Inebriated; inebriating. Also inebriacy; inebriant (n. and adj.); inebriety; and inebrious.