countervail
2 occurrences across the corpus
King James Version
Esther 7:4
For we are sold, I and my people, to be destroyed, to be slain, and to perish. But if we had been sold for bondmen and bondwomen, I had held my tongue, although the enemy could not countervail the king’s damage.
KJV Apocrypha (Catholic Deuterocanon)
Sirach (Ecclesiasticus) 6:15
Nothing doth countervail a faithful friend, and his excellency is invaluable.