assertion Copy link Outline I. A positive statement1. affirmātĭo2. confirmātĭo3. assĕvērātĭo (vehement a.)II. Maintenance, claim, vindication; q. v. • assertion: I. A positive statement: 1. affirmātĭo: I believed the a. of Laterensis, credidi affirmationi Laterensis, Cic.: Caes. 2. confirmātĭo: the a. of the deserter, c. perfugae, Caes. 3. assĕvērātĭo (vehement a.): v. asseveration. II. Maintenance, claim, vindication; q. v.: postŭlātĭo. (assertio often in Arnob.)