Lunatic

//ˈluːnətɪk// adj, noun

Definitions

Adjective
  1. 1
    Crazed, mad, insane, demented.
  2. 2
    Relating to the Moon; lunar. literary, rare

    "As the narrator turns his attention to the moon itself and its Lunatic inhabitants, Heinsius seems to draw on the True History, but is still within the confines of the Icaromenippus."

  3. 3
    Influenced or affected by the Moon. literary, rare

    "This I remember: she was false as the lunatic sea."

Adjective
  1. 1
    insane and believed to be affected by the phases of the moon wordnet
Noun
  1. 1
    An insane person.

    "While there are other races (or individuals—heaven forgive me, I am no ethnologist) who think you a criminal or a lunatic unless you carefully plod along from step to step like a hippopotamus out of water."

  2. 2
    a reckless impetuous irresponsible person wordnet
  3. 3
    an insane person wordnet

Etymology

Etymology 1

From Middle English lunatik, from Old French lunatique, from Late Latin lunaticus (“moonstruck”), derived from Latin luna (“moon”), the connection stemming from the belief that changes of the moon caused intermittent insanity.

Etymology 2

From Middle English lunatik, from Old French lunatique, from Late Latin lunaticus (“moonstruck”), derived from Latin luna (“moon”), the connection stemming from the belief that changes of the moon caused intermittent insanity.

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