nĕgātīvus — Lewis & Short
nĕgātīvus, a, um, adj.id.,
I that denies, negative (post-class. for negans, privans, etc.):
negativa actio,Gai. Inst. 4, 3:
particula,App. Dogm. Plat. 3, p. 32, 36:
verba,Dig. 50, 16, 237; opp. confirmativus, Schol. Juv. 6, 457; 14, 127.—Hence, adv.: nĕgātīvē, negatively (opp. affirmative), Cassiod. Dial. p. 548
(a) ; Boëth. ap. Cic. Top. 5, p. 359, 9 Bait.