ze.ah denotes the perspiration associated with eating food by the labor of one's brow.

The attested use names the perspiration associated with laboring to eat food before returning to the ground.

1. Perspiration in labor for food · dominant

   In Genesis 3:19, the construct singular feminine form occurs in the phrase concerning the brow and eating food; the APB renders the clause, “By the sweat of your brow you will eat your food.”

   Genesis 3:19

In the Anselm Project Bible: In Genesis 3:19, the APB presents the phrase as “the sweat of your brow”; The term’s individual English correspondence is inferred from the clause as a whole.