ἀμοιβαῖος
From LSJ
ὑμῖν ἔξεστι εὐδαίμοσι γενέσθαι → to you it is permitted to be joyful, it is permitted to be happy, it is permitted to be fortunate, vobis licet esse beatis
English (LSJ)
ον, also α, ον,
A giving like for like, retributive, δεῖπνα Pi.O.1.39; retributive, νέμεσις, φόνος, AP10.123 (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.