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Entry 2 senses Webster, 1913

Despot

/dĕs'-pət/ · Des·pot · IPA /ˈdɛs.pət/
01 n. A master; a lord; especially, an absolute or irresponsible ruler or sovereign.
  1. 1.
    A master; a lord; especially, an absolute or irresponsible ruler or sovereign.
    “Irresponsible power in human hands so naturally leads to it, that cruelty has become associated with despot and tyrant.” — C. J. Smith.
  2. 2.
    One who rules regardless of a constitution or laws; a tyrant.