What does "gad" mean?

Gad: A pointed or wedge-shaped instrument of metal, as a steel wedge used in mining, etc. I will go get a leaf of brass, And with a gad of steel will write these words. Shak.

Additional senses

  1. 2.A sharp-pointed rod; a goad.
  2. 3.A spike on a gauntlet; a gadling. Fairholt.
  3. 4.A wedge-shaped billet of iron or steel. [Obs.] Flemish steel . . . some in bars and some in gads. Moxon.
  4. 5.A rod or stick, as a fishing rod, a measuring rod, or a rod used to drive cattle with. [Prov. Eng. Local, U.S.] Halliwell. Bartlett. Upon the gad, upon the spur of the moment; hastily. [Obs.] "All this done upon the gad!" Shak.
  5. 6.To walk about; to rove or go about, without purpose; hence, to run wild; to be uncontrolled. "The gadding vine." Milton. Why gaddest thou about so much to change thy way Jer. ii. 36.

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