Chambers's Twentieth Century Dictionary…
“ Patagium, pat-ā-jī′um, n. the wing-membrane of a bat, &c.: the parachute of a flying squirrel, &c.: the fold of integument between the upper arm and the forearm of a bird: one of the scales affixed to the pronotum of lepidopterous insects—the tegula. [L., 'a gold edging.'] Patamar, pat′a-mär, n. a vessel on the Bombay coast, with arched keel, and great stem and stern rake. ”
