nounorthŏpȳgĭumORTHOPYGIVM☆ KeepMeaningthe rump and tail feathers of birdsLewis & Short 1879ModernAs printed, 1879ORTHOPYGIUMLEWIS & SHORTORTHOPYGIUMorthŏpȳgĭum, ĭi, n., = ὀρθοπύγιον, I. the rump and tail feathers of birds, Mart. 3, 93, 12 (al. orrhopygium = ὀρροπύγιον, of the same meaning).Read the whole entry