"belt, girdle, or band worn round the body," 1580s, from Latin cinctura "a girdle," from cinctus, past participle of cingere "to surround, encircle" (see cinch (n.)). Especially the girdle used to confine a clergyman's cassock. The verb is recorded from 1757 (implied in cinctured).

long-tailed Brazilian raccoon, 1670s, from Spanish quachi, quasje, from a name in the Tupi native language of Brazil; according to OED it is a compound of cua "belt, cincture" + tim "nose."