D defs.my
Entry 1 sense Webster, 1913

Derangement

· De·range·ment · IPA /dɪˈɹeɪnd͡ʒmənt/
01 n. The act of deranging or putting out of order, or the state of being deranged; disarrangement; disorder; confusion; especially, mental disor…
  1. 1.
    The act of deranging or putting out of order, or the state of being deranged; disarrangement; disorder; confusion; especially, mental disorder; insanity.