Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD ORIGIN

Old English renboga; see rain (n.) + bow (n.). Common Germanic compound (cf. Old Frisian reinboga, Old Norse regnbogi, Swedish regenbåge, Dutch regenboog, German Regenbogen). Rainbow trout (1876, American English) so called for its resplendent colors. Old English also had scurboga "shower-bow."

MORE RELATED WORDS FOR RAINBOWLIKE

iridescent

adjectiverainbow-colored
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.