wrist (n.) Look up wrist at Dictionary.com
Old English wrist, from Proto-Germanic *wristiz (cognates: Old Norse rist "instep," Old Frisian wrist, Middle Dutch wrist, German Rist "back of the hand, instep"), from Proto-Germanic *wreik- "to turn" (see wry). The notion is "the turning joint." Wrist-watch is from 1889. Wrist-band is from 1570s as a part of a sleeve, 1969 as a perspiration absorber.