COUNTERVAIL, verb transitive [counter and Latin , 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 7:4. COUNTERVAIL, noun Equal weight or strength; power or value sufficient to obviate any effect; equal weight or value; compensation; requital.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI