nappy adj.

late 14c., "a table napkin, small square piece of cloth used to wipe the lips and hands and protect the clothes at table," a diminutive of nape "a tablecloth" (from Old French nape "tablecloth, cloth cover, towel," from Latin mappa; see map (n.)) + Middle English -kin "little." No longer felt as a diminutive. The Old French diminutive was naperon (see apron). The shift of Latin -m- to -n- was a tendency in Old French (conter from computare, printemps from primum, natte "mat, matting," from matta). Middle English also had naperie "linen objects; sheets, tablecloths, napkins, etc.;" also, "place where the linens are kept." Napkin-ring is from 1680s.

"downy or woolly surface of cloth," mid-15c., noppe, from Middle Dutch or Middle Low German noppe "nap, tuft of wool," probably introduced by Flemish cloth-workers. Cognate with Old English hnoppian "to pluck," ahneopan "pluck off," Old Swedish niupa "to pinch," Gothic dis-hniupan "to tear."

adjective suffix, "full of or characterized by," from Old English -ig, from Proto-Germanic *-iga- (source also of Dutch, Danish, German -ig, Gothic -egs), from PIE -(i)ko-, adjectival suffix, cognate with elements in Greek -ikos, Latin -icus (see -ic). Originally added to nouns in Old English; used from 13c. with verbs, and by 15c. even with other adjectives (for example crispy). Adjectives such as hugy, vasty are artificial words that exist for the sake of poetical metrics.