Emily Dickinson Lexicon

PLUG, n. [D. plug; Dan. plyg; Sw. pligg; G. pflock; W. ploc, a block; plociaw, to block, to plug. It seems to be the same word radically as block, W. lloc.]

A stopple; any piece of pointed wood or other substance used to stop a hole, but larger than a peg or spile. – Boyle. Swift. Hawse-plug, in marine affairs, a plug to stop a hawse-hole. Shot-plug, a plug to stop a breach made by a cannon-ball in the side of a ship. – Mar. Dict.