References in classic literature ?
The secretary drooped his head with an expression of perfect acquiescence in anything that had been said or might be; and Lord George gradually sinking down upon his pillow, fell asleep.
That the members of the aforesaid Corresponding Society be, and are hereby informed, that their proposal to pay the postage of their letters, and the carriage of their parcels, has been deliberated upon by this Association: that this Association considers such proposal worthy of the great minds from which it emanated, and that it hereby signifies its perfect acquiescence therein.
May I hope for your acquiescence, and for your not influencing your son against such a tenant?
He seemed to greet the lapse of minute after minute with stern acquiescence in the inevitable order.