ὄφελος
Alt. ὄφελος, εος, τό,
Etym. ὀφέλλω2
Etym. only in nom.
"furtherance, advantage, help", used often (like "opus)" as an indecl. adj., αἴ κ᾽ ὄφελός τι γενώμεθα whether we can be "of any use", Il.; τί δῆτ᾽ ἂν εἴης ὄφ. ἡμῖν; what "good" couldst thou be to us? Ar.; c. inf., τί ὄφ. σώματι κάμνοντι σιτία διδόναι; Plat.; c. gen., τῶν ὄφελός ἐστι οὐδέν of which there is no "profit", Hdt.; ὄφ. οὐδὲν γεωργοῦ ἀργοῦ Xen.;—but, ὅ τι περ ὄφελος στρατεύματος "the serviceable part" of the army, id=Xen.