ὀνίνημι impf. act for ὀνίνημι supplied by ὠφέλουν
I.Act. to profit, benefit, help, assist, and, like Lat. juvo, to gratify, delight; absol. and c. acc. pers., Il., etc.; πολλὰ ὀν. τινα Od.; ὡς ὤνησας ὅτι ἀπεκρίνω how you pleased me by answering, Plat.
II.Mid. to have profit or advantage, derive benefit, have enjoyment or delight, Hom., etc.; c. gen. to have advantage from, have enjoyment of, δαιτὸς ὄνησο Od.; τί σευ ἄλλος ὀνήσεται; what good will others have of thee, i. e. what good will you have done them? Il.; so, ὄνασθαί τι ἀπό τινος Plat.
2.aor.2 part. ὀνήμενος, = felix, ἐσθλός μοι δοκεῖ εἶναι, ὀνήμενος he seems to me noble, favoured by the gods, Od.
3.aor. opt. ὀναίμην, αιο, αιτο, in protestations and wishes, ὄναιο, Lat. sis felix! Eur., etc.; and c. gen., ὄναιο τῶν φρενῶν bless thee for thy good sense, id=Eur.; μὴ νῦν ὀναίμην may I not thrive (where βίου must be supplied), Soph.:—also in ironical sense, ὄναιο μέν τἄν you'd be the better of it! Ar.; ἁλσὶν διασμηχθεὶς ὄναιτ᾽ ἂν οὑτοσί he'd be very nice if he were rubbed down with salt, id=Ar.