ἀμοιβαῖος

A. giving like for like, retributive, δεῖπνα Pi. O. 1.39; retributive, νέμεσις, φόνος, AP 10.123 (Aesop.), Opp. C. 2.485. Adv. ‐ως alternately, Luc. Am. 9.

II. interchanging, reciprocal, Emp. 30.3; ἀ. βιβλία interchanged letters, Hdt. 6.4; ἀ. χάρις exchange of favours, A.R. 3.82 (but ἀ. εὐνή ambiguous (half-human, half-animal), 2.1241):—τὰ ἀ. dialogue in Trag., Pl. R. 394b; of the responsion of choric odes, Plu. Pomp. 48; ἀ. ἀοιδά Theoc. 8.31, cf. Il. 1.604; answering as in dialogue, Sch.Ar. Pl. 253,487.