moon madness

English

Noun

moon madness (uncountable)

1. (historical) Lunacy supposed to be caused by sleeping in full moonlight
   • 1817 December, Percy Bysshe Shelley, “The Revolt of Islam. […]”, in [Mary] Shelley, editor, The Poetical Works of Percy Bysshe Shelley. […], volume I, London: Edward Moxon […], published 1839, →OCLC, page 267:

     Want, and Moon-madness, and the Pest’s swift Bane,
     When its shafts smite—while yet its bow is twanging—
     Have each their mark and sign—some ghastly stain; […]