Gad

The point of a spear, or an arrowhead.

A pointed or wedge-shaped instrument of metal, as a steel wedge used in mining, etc.

A sharp-pointed rod; a goad.

A spike on a gauntlet; a gadling.

A wedge-shaped billet of iron or steel.

A rod or stick, as a fishing rod, a measuring rod, or a rod used to drive cattle with.

To walk about; to rove or go about, without purpose; hence, to run wild; to be uncontrolled.

an anxiety disorder characterized by chronic free-floating anxiety and such symptoms as tension or sweating or trembling or lightheadedness or irritability etc. that has lasted for more than six months