ETYMOLOGY
from be- + daff (a fool, a simpleton)
EXAMPLE (for vb. 1.)
“… Folweth ecco, that holdeth no silence,
But ever answereth at the countretaille :
Beth not bedaffed for your innocence,
But sharply taketh on you the governaille :
Emprenteth wel this lesson in your minde,
For comun profit, sith it may availle. …”
From: Canterbury Tales; The Clerkes Tale
By Geoffrey Chaucer, c1386
Lexicophilia 