Nul"li*fy (?), v. t. [imp. & p. p. Nullified (?); p. pr. & vb. n. Nullifying (?).] [L. nullificare; nullus none + -ficare (in comp.) to make. See Null, a., and -fy.]
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.
© Webster 1913.