DictionarycountervailCounteract an effect
verb

countervail

kown-ter-VAYL/kˈaʊntɝvˌeɪl/

To balance or counteract the effect of something.

Iron counterweights countervail the stone's downward pull, keeping the beam level.

A heavy stone on one end of a level balance beam is countervailed by iron counterweights on the other end, visibly offsetting its downward pull.
Etymology

“Against” and “be worth” express matching something in strength or value. To countervail something is thus to meet it with enough opposing force to offset its effect.

More examples

  • Lower fuel costs countervailed the increase in shipping fees.
  • The treatment's benefits countervail its unpleasant side effects.
  • Public pressure acts as a countervailing force against corporate influence.

Forms

countervail · countervails · countervailed · countervailing

Similar words

offset
Often describes compensating for a cost, loss, or disadvantage.
counteract
Emphasizes working against an effect rather than balancing it.
counterbalance
Emphasizes balancing one weight or influence with another.