haerĕtĭcus, a, um, adj., = αἱρετικός, of or belonging to heretical religious doctrines, heretical (eccl. Lat.).
I Adj. : commissatio, Tert. adv. Haer. 41: nigredo, Arat. Act. Apost. 1, 611.—Adv.: haerĕtĭce , heretically , Cassiod. Hist. Eccl. 5, 36.—
II Subst.: haerĕtĭcus , i, m., a heretic , Tert. adv. Hermog. 27; id. de Bapt. 115; so the title of Tertullian's work: de Praescriptione adversus haereticos.