Definition (full): to pour out, to empty, to depopulate, to spread out
Strong's Exhaustive Concordance
A primitive root; to pour out, i.e. To empty, figuratively, to depopulate; by analogy, to spread out (as a fruitful vine) -- (make) empty (out), fail, X utterly, make void.
KJV: And the spirit of Egypt shall fail in the midst thereof; and I will destroy the counsel thereof: and they shall seek to the idols, and to the charmers, and to them that have familiar spirits, and to the wizards.
NASB: "Then the spirit of the Egyptians will be demoralized within them; And I will confound their strategy, So that they will resort to idols and ghosts of the dead And to mediums and spiritists.