madcap (n.) Old form(s): mad-cap
mad-brained fellow, lunatic
KJ I.i.84[King John to Queen Eleanor, of the Bastard] what a madcap hath heaven lent us here!
TG II.v.7[Speed to Launce] Come on, you madcap
SHAKESPEARE'S WORDS © 2018 DAVID CRYSTAL & BEN CRYSTAL