modifyv. t.[F. modifier, L. modificare, modificari; modus limit + -ficare (in comp.) to make. See Mode, and -fy.]1. To change somewhat the form or qualities of; to change a part of something while leaving most parts unchanged; to alter somewhat; as, to modify a contrivance adapted to some mechanical purpose; to modify the terms of a contract.()2. To limit or reduce in extent or degree; to moderate; to qualify; to lower.()Of his grace
He modifies his first severe decree. (Dryden.)