zur denotes applying physical pressure, whether squeezing out liquid or crushing underfoot.

Zur is used chiefly of pressing or squeezing something so that its contents are forced out, as with untreated wounds and a fleece; it also describes crushing by a foot or animal.

1. Pressing or squeezing out · dominant

   In Isaiah 1:6, the passive form occurs among the treatment of wounds; the APB renders the clause “they were not pressed out, nor bound up, nor softened with oil.” In Judges 6:38, the sequential imperfect describes the action on the fleece before water is drained from it; the APB renders that he “pressed the fleece.”

   Isaiah 1:6Judges 6:38
2. Crushing underfoot · occasional

   In Job 39:15, the Qal imperfect stands in the warning that a foot may act on them; the APB renders the action “crush them,” followed by an animal of the field that may “tread them.”

   Job 39:15

In the Anselm Project Bible: The APB presents the physical action with “pressed out” in Isaiah 1:6, “crush” in Job 39:15, and “pressed” in Judges 6:38. These are renderings of whole clauses.