KJV Dictionary Definition: countervail
COUNTERVAIL, v.t. counter and L., to avail or be strong. To act against with equal force, or power; to equal; to act with equivalent effect against any thing; to balance; to compensate.
The profit will hardly countervail the inconveniences.
Although the enemy could not countervail the kings damage. Esther 7.
COUNTERVAIL, n. Equal weight or strength; power or value sufficient to obviate any effect; equal weight or value; compensation; requital.
COUNTERVAILED, pp. Acted against with equal force or power; balanced; compensated.
COUNTERVAILING, ppr. Opposing with equal strength or value; balancing; obviating an effect.