Word Study
batty
CIDE DICTIONARY
batty, a.
- Belonging to, or resembling, a bat. Shak. [1913 Webster]
- Crazy; demented; loony; nuts; as, her constant gabbing is driving me batty. [PJC]
OXFORD DICTIONARY
batty, adj. (battier, battiest) sl. crazy.
Derivative
battily adv. battiness n.
Etymology
BAT(2) + -Y(1)
THESAURUS
batty
apish, asinine, balmy, bananas, barmy, bats, beany, bedlamite, befooled, beguiled, besotted, bonkers, brainless, buffoonish, buggy, bughouse, bugs, cockeyed, cracked, crackers, crazed, crazy, credulous, cuckoo, daffy, daft, dazed, deranged, dippy, dizzy, doting, dotty, dumb, fatuitous, flipped, fond, fool, foolheaded, foolish, freaked-out, fruitcakey, fruity, fuddled, futile, gaga, goofy, gulled, haywire, idiotic, imbecile, inane, inept, infatuated, insane, just plain nuts, kooky, loony, loopy, mad, maniac, maudlin, moronic, nuts, nutty, off the hinges, off the track, off the wall, potty, round the bend, sappy, screwball, screwballs, screwy, senseless, sentimental, silly, slaphappy, stupid, thoughtless, wacky, wet, witlessFor further exploring for "batty" in Webster Dictionary Online