词源 |
batty adj.1580s, "pertaining to or resembling a bat or bats," from bat (n.2) + -y (2). The slang sense of "nuts, crazy" is attested from 1903, from the colloquial expression (to have) bats in (one's) belfry "not be right in the head" (1899). updated on October 05, 2022 |