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From countervail + -able.
Etymology from Wiktionary, CC BY-SA 4.0.
countervailable
Today it means: Able to be countervailed; able to be counteracted, counterbalanced or neutralized; compensable. Full definition →
Today it means: Able to be countervailed; able to be counteracted, counterbalanced or neutralized; compensable. Full definition →
From countervail + -able.
Etymology from Wiktionary, CC BY-SA 4.0.