wild, rash, scatterbrained, insane, mad ...1693 obs.
a foolish or insane person; a lunatic, a mad fellow;
a crackbrained person; a scatterbrain; a hot-headed person;
a rash or turbulent person; a wild, giddy person ...1611 obs.
from mad (adj.) + -pash (n. the head, the brain)
FIRST DOCUMENTED USE
1611 - Mat, a foole, fop, gull; mad-pash, harebrained ninnie.
From: A Dictionarie of the French and English Tongues
- Randle Cotgrave
"...Come, let us leave this Madpash Bedlam, this hairbrain'd Fop, and give him leave to rave and dose his Belly-full, with his private and intimately acquainted Devils..."
From: The Third Book of the Works of Mr. Francis Rabelais
- By Francois Rabelais
Translated by Thomas Urquhart and Peter Anthony Motteux