Origin of underwing
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for underwing
The first thing I ever got from her was a lovely look, the first time ever I set eyes on her she came with an underwing moth.Slippy McGee, Sometimes Known as the Butterfly Man
Marie Conway Oemler
Underwing, un′dėr-wing, n. a moth with conspicuous underwings, esp.