ὀρθόκραιρος
From LSJ
τὸν αὐτὸν ἔρανον ἀποδοῦναι → pay him back in his own coin, repay him in his own coin, pay someone back in their own coin, pay back in someone's own coin, give tit for tat, pay back in kind
English (LSJ)
α, ον,
A with straight or upright horns, epith. of horned cattle, Il.8.231, Od.12.348 ; also of galleys, of which the two ends turned up so as to resemble horns, Il.18.3, 19.344 ; of a mountain range, Πυρήνην -κραιρον AP14.121.5 (Metrod.).—Hom. has it only in poet. gen. pl. fem. ὀρθοκραιράων.