negatio

nĕgātĭo, ōnis, f. [nego],

I a denying, denial, negation , Cic. Sull. 13, 39: negatio inficiatioque facti, id. Part. 29, 102.—

II In partic., a word that denies, a negative , Ap. Dogm. Plat. 3, p. 32, 38.