diaetarius
From LSJ
οἱ τοῖς πέλας ἐπιβουλεύοντες, λανθάνουσι πολλὰκις ὑφ' ἑτέρων τοῦτ' αὐτὸ πάσχοντες → when people plot against their neighbours, they fall victim to the same sort of plot themselves
Latin > English (Lewis & Short)
dĭaetārĭus: ii, m. diaeta, no. II.,
I a valet-de-chambre, Dig. 33, 7, 12, § 42, ib. 4, 9, 1.