ὠφέλησις

εως, ἡ
A. helping, aiding, hence, like ὠφέλεια, use, service, advantage, S. OC 401; σοὶ γὰρ ὠ. οὐκ ἔνι Id. El. 1031.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project