sb. Obs. In 6 bum-. [f. BOMBASE v. + -ING1.]
1. = BOMBASINE 2 (perh. a corruption).
1580. Baret, Alv., Bumbasing or anything made of cotten.
2. Padding with bombace.
1598. Florio, Imbottitura a quilting, a bumbasing.