Quiz: Remember the definition of mal de mer?
"extremely small," mid-15c., from earlier noun use in sense of "quantity, amount" (cf. a littel wei "a little thing or amount," c.1300), from Old English wæge "weight" (see weigh). Adj. use wee bit apparently developed as parallel to such forms as a bit thing "a little thing." Wee hours is attested by 1891, from Scot. wee sma' hours (1787, Burns). Wee folk "faeries" is recorded from 1819. Weeny "tiny, small" is from 1790.