ἐπιίστωρ
ἐπιίστωρ, ορος, ὁ, ἡ,
A). privy to a thing: c.gen., μεγάλων ἔργων ἐ. privy to great works (i.e. the robbery of the mares), ; so 21.26 τεῶν μύθων ἐ. : abs., ib. 4.89 16 .
2).. acquainted with, practised in, δίσκων, γεωμετρίης, AP 11.371 ( ), App.Anth. 7.2 ( ); σοφίης IG 3.946 , cf. Doroth.in Cat.Cod.Astr. 2.172 .