dis·unify \“+\transitive verb Etymology:dis- (I) + unify : to destroy the unity of: a.: to bring about a lack of concord or harmony in or among < humanity, already profoundly perplexed and disunified — J.D.Ratcliff > b.: to break up (a unified whole) into separate often dissident parts < set out deliberately to divide and disunify this nation — S.A.Mitchell >