I / incestus
noun

incestus

gen. incestūs · gender masculine · decl. 4th
1. incestus, II.
unchastity; incest
unchastity, incest (mostly Ciceron.): quaestio de incestu, Cic. Mil. 22, 59; id. Brut. 32, 122; 124; id. N. D. 3, 30, 74 Klotz; Liv. 4, 44 Weissenb.; Val. Max. 6, 3, 7.