Lewis & Short

1. băt, a comic word formed to parody the conj. at: Ps. Potin aliam rem ut cures? Cali. At. Ps. Bat. Cali. Crucior, Plaut. Ps. 1, 3, 6 Lorenz ad loc.; cf.: at enimbat enim, id. Ep. 1, 1, 86 (95).