μαίνομαι
Etym. from Root ΜΑΝ
I. "to rage, be furious", Hom.; ὁ μανείς "the madman", Soph.: "to be mad" with wine, Od.:—of Bacchic frenzy, Il., Soph.; ὑπὸ τοῦ θεοῦ μ. "to be driven mad by" the god, Hdt.; τὸ μαίνεσθαι "madness", Soph.; πλεῖν ἢ μαίνομαι more than "madness", Ar.:—c. acc. cogn., μεμηνὼς οὐ σμικρὰν νόσον "mad with" no slight disease, Aesch.
2. of fire, "to rage, riot", Il.; so, μαινομένη ἐλπίς Orac. ap. Hdt.; ἔρις Aesch., etc.
II. the aor1 act. ἔμηνα, in Causal sense, "to madden, enrage", Eur., Xen.