Bonny

a. [It is generally derived from Fr. bon, bonne, good, which supplied also the word boom, a. Compare, however, Gael. & Ir. bain, baine, white, bright, fair, fair-haired.] 1. Handsome; beautiful. Till bonny Susan sped across the plain. Gay. 2. Gay; merry; frolicsome; cheerful; blithe. “Blithe and bonny.” Shak. Report speaks you a bonny monk, that would hear the matin chime ere he quitted his bowl. W. Scott. 3. Plump; well-formed.

n. (Mining.) A round and compact bed of ore, or a distinct bed, that communicates with no vein.