Webster's 1828 Dictionary
PIGGIN
n.A small wooden vessel with an erect handle, used as a dipper.
Webster's 1913 Dictionary
PIGGIN
Pig "gin, n. Etym: [Scot. ; cf. Gael. pigean, dim. of pigeadh, pige, an earthen jar, pitcher, or pot, Ir. pigin, pighead, W. piccyn.]
Defn: A small wooden pail or tub with an upright stave for a handle, -- often used as a dipper.
The Wordsmith Dictionary