Meaning

noun garment consisting of a folded cloth drawn up between the legs and fastened at the waist; worn by infants to catch excrement

adjective (of hair) in small tight curls

originFrom Middle English nap, from Old English hnæp, hnæpp, hnæpf (“cup, bowl”), from Proto-West Germanic *hnapp, from Proto-Germanic *hnappaz (“bowl, goblet, cup”). See hanaper.

Etymology from Wiktionary, CC BY-SA 3.0