Webster's Revised Unabridged Dictionary · 1913

Nappy

Nappy , adjective

[From 1st Nap.]

1.
Inclined to sleep; sleepy; as, to feel nappy.
2.
Tending to cause sleepiness; serving to make sleepy; strong; heady; as, nappy ale. [Obsolete] — Wyatt

Nappy , adjective

[From 3d Nap.]

Having a nap or pile; downy; shaggy. — Holland

Nappy (#) , noun

[Old English nap, Anglo-Saxon hnaep cup, bowl. See Hanaper.]

A round earthen dish, with a flat bottom and sloping sides.

nappy (#) , noun

A diaper{4}. [Chiefly British]