incest Copy link • incest: incestum, i; incestus, ūs (but unchastity in gen. sense is included: cf. Cic. Inv. 1, 40, 73, concubuit cum viro ... fecit igitur incestum: it is chiefly used of unchastity of a revolting or profane kind): to commit i. with a daughter, incestum (neut.) cum filia admittere, Suet. Cal. 23: an inquiry concerning i. (of Clodius at the festival of Bona Dea), quaestio de incestu, Cic. Mil. 22, 59: acts of i. with sisters, incesta sororum, Suet. Cal. 36. Phr.: to wallow in i., in domesticis germanitatis stupris volutari, Cic. (?) Harusp. 20, 42 to commit i. with a daughter, incestare filiam, Tac. Ann. 6, 19.