Strong's #1503: geza' (pronounced geh'-zah)

from an unused root meaning to cut down (trees); the trunk or stump of a tree (as felled or as planted):--stem, stock.

Brown-Driver-Briggs Hebrew Lexicon:

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geza‛

1) stem, trunk, stock (of trees)

Part of Speech: noun masculine

Relation: from an unused root meaning to cut down (trees)

Usage:

This word is used 3 times:

 

Job 14:8: "the root thereof wax old in the earth, and the stock thereof die in the ground;"
Isaiah 11:1: "And there shall come forth a rod out of the stem out of the stem of Jesse, shall grow out of his roots:"
Isaiah 40:24: "be sown: yea, their stock shall not take root in the earth: and he shall also"