From Anglo-Norman countrevaloir ( = Old French contrevaloir), from Latin contrā valēre (“to be worth against”).
countervail (third-person singular simple present countervails, present participle countervailing, simple past and past participle countervailed)
- (obsolete) To have the same value as.
- To counteract, counterbalance or neutralize.
- To compensate for.
- 1603, John Florio, translating Michel de Montaigne, Essays, I.38:
- I am one of those who thinke their fruit can no way countervaile this losse.
- Upon balancing the account, the profit at last will hardly countervail the inconveniences that go along with it.
to counteract, counterbalance or neutralize