moretum
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
Latin > English (Lewis & Short)
mŏrētum: i, n. from same root with mordeo, q. v..
I A country dish composed of garlic, rue, vinegar, oil, etc., Ov. F. 4, 367.—
II Mŏrētum, i, n., the title of a small poem ascribed to Virgil; v. Heyne and Sillig in Verg. Carm. vol. iv. p. 301 sq. Wagner (acc. to Stander in Zeitschr. für Alt. Wissensch. 1853, part 4, p. 289 sq., a transl. of the Μυττωτός of Virgil's Greek teacher Parthenius).