P / per-sĕvērus
adjective

per-sĕvērus

fem. per-sĕvēra · neut. per-sĕvērum
very strict; very strictly
very strict: imperium, Tac. A. 15, 48.—Adv.: persĕ-vērē, very strictly: inquirere, Plin. Ep. 9, 5, 1.