3.c. dat. pers. only, to help, assist, Hdt., Ar.:—rarely c. acc. pers., like ὠφελεῖν, Eur.:—absol., τίς ἄρ᾽ ἐπαρκέσει; who will aid? Aesch.
II.to supply, furnish, τι id=Aesch.; ἐπ. τινί τινος to impart to him a share of, Xen.; c. dat. rei, to supply with a thing, Eur.
III.absol. to be sufficient, to prevail, Soph.