To accept something reluctantly but without protest; to agree or consent quietly.
From Latin 'acquiescere' meaning 'to rest in,' from 'ad-' (to) plus 'quiescere' (to be quiet). Related to 'quiet' and 'quiescent.' Originally meant finding peace or rest in a decision.
Think 'acquire quiet' — you acquire peace by staying quiet and going along with something! It's not enthusiastic agreement; it's more like sighing and saying 'fine, whatever' when you're tired of arguing.
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