WordWeight : Weighing the Words

Pronunciation : Nul"li*fy
Part of Speech : v.
Etymology : [L. nullificare; nullus none + -ficare (in comp.) to make. See Null, a., and -fy.]
Definition : Defn: To make void; to render invalid; to deprive of legal force or efficacy. Such correspondence would at once nullify the conditions of the probationary system. I. Taylor.

Syn. -- To abrogate; revoke; annul; repeal; invalidate; cancel. See Abolish.

t. [imp. & p. p. Nullified; p. pr. & vb. n. Nullifying.]
Source : Webster's Unabridged Dictionary, 1913