ac·qui·esce (kw-s) KEY
ac·qui·esced, ac·qui·esc·ing, ac·qui·esc·es
Latin acquiscere : ad-, ad- + quiscere, to rest; see kwei- in Indo-European roots
When acquiesce takes a preposition, it is usually used with in (acquiesced in the ruling) but sometimes with to (acquiesced to her parents' wishes). Acquiesced with is obsolete.