Third-person singular simple present indicative form of derange

present participle of derange

The property of being deranged. / An act or instance of deranging. / (mathematics, combinatorics) A permutation of a set such that no element is in its previous position.

plural of derangement

(transitive, chiefly passive) To cause (someone) to go insane or become deranged. / (transitive) To cause disorder in (something); to distort from its ideal state.

Disturbed or upset, especially mentally. / Insane.

simple past tense and past participle of derange

One who deranges.

plural of deranger

The acute onset of paranoia in otherwise normal and balanced people triggered by the mention of a specific topic.