/ ˌækwiˈes; NAmE / verb
[ v ] acquiesce (in sth) ( formal ) to accept sth without arguing, even if you do not really agree with it :
Senior government figures must have acquiesced in the cover-up.
➡ note at agree
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WORD ORIGIN
early 17th cent.: from Latin acquiescere , from ad- to, at + quiescere to rest.