The Probert Encyclopaedia of General Information

LUG

Lug is an old Scottish word, also used in the North of England for the ear. From this original meaning evolved the various other meanings for lug, hence the verb to lug originally meant to pull by the ear, and later became a term meaning to pull or carry something with great effort. The term also was applied to a projection resembling an ear, and this evolved into any small projection from an object by which an object can be carried or fixed in place.
Research Lug