ETYMOLOGY
for adj. 1: from Latin stultitia (folly),
from stultus (foolish)
EXAMPLE
“…In Wales in diuers places is vsed these two stulticious matters, the fyrste is, that they wyl sell their lams, and theyr calues, and theyr corne the whyche is not sowen, and all other newynges, a yere before that they be sure of any newynge; and men wyl bye it, trustynge vppon hope of suche thynges that wyl come…”
From:
The Fyrst Boke of the Introduction of Knowledge
By Andrew Boorde, 1549
Lexicophilia 