"pleasing, good-looking," "a gen. Scottish epithet of appreciation" [OED], but often used ironically, 1540s, of unknown origin; presumably from Old French bon, bone "good" (see bon). Related: Bonnily; bonniness.
my bonny lass
there's a bonny bay beyond
bonito
bonjour
bonk
bonkers
bonnet
bonny
bonnyclabber
bonobo
bonsai
bonus
bon-vivant
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