variant spelling of even (adj.), now archaic or poetic. E'enamost "even almost" is recorded from 1735 in Kentish speech.
late 14c., nowghty, noughti "needy, having nothing," also "evil, immoral, corrupt, unclean," from nought, naught "evil, an evil act; nothingness; a trifle; insignificant person; the number zero" (from Old English nawiht "nothing;" see naught)) + -y (2).
Specific meaning "sexually promiscuous" is from 1869. The mitigated sense of "disobedient, bad in conduct or speech, improper, mischievous" (especially of the delinquencies of children) is attested from 1630s. Related: Naughtily; naughtiness. In 16c.-18c. a woman of bad character might be called a naughty pack (also sometimes used of men and later of children).
early 14c., drevel "saliva, slaver," from drivel (v.). Meaning "senseless twaddle, idiotic speech or writing" is by 1852.