nap (n.) Look up nap at Dictionary.com
"downy surface of cloth," 1440, from M.Du. or M.L.G. noppe "nap, tuft of wool," probably introduced by Flem. cloth-workers. Cognate with O.E. hnappian "to pluck," ahneopan "pluck off," O.Swed. niupa "to pinch," Goth. dis-hniupan "to tear."
nap (v.) Look up nap at Dictionary.com
O.E. hnappian "to doze, sleep lightly," of unknown origin, apparently related to O.H.G. hnaffezan. The noun is first attested c.1300.