1630s, "rest, quiet, satisfaction," from Middle French acquiescence, noun of action from acquiescer "to yield or agree to; be at rest" (see acquiesce). Meaning "silent consent, passive assent" is recorded from 1640s.
a murmur of acquiescence from the assembly
acoustics
acquaint
acquaintance
acquainted
acquiesce
acquiescence
acquiescent
acquire
acquired
acquirement
acquisition
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