verb (used without object), ac·qui·esced, ac·qui·esc·ing.
- to assent tacitly; submit or comply silently or without protest; agree; consent: to acquiesce halfheartedly in a business plan.
- (intr; often foll by in or to) to comply (with); assent (to) without protest
1610s, from Middle French acquiescer (16c.), from Latin acquiescere “to become quiet, remain at rest,” thus “be satisfied with,” from ad- “to” (see ad-) + quiescere “to become quiet,” from quies (genitive quietis) “rest, quiet” (see quiet (n.)). Related: Acquiesced; acquiescing.