Gad

gad, n. a pointed bar of steel: a tool used in mining: a graver: a rod or stick, a goad: the bar acro a Scotch condemned cell, on which the iron ring ran which fastened the shackles—also Gade , Gaid .— n. Gad′ling , one of the spikes on the knuckles of a gauntlet.— Upon the gad ( Shak. ), upon the spur of the moment. [Ice. gadd-r , a spike.]