wakener

enUK

wak·en

W0011900 (wā′kən)v. wak·ened, wak·en·ing, wak·ens v.tr.1. To rouse from sleep; awake: The noise wakened me.2. To rouse from a quiescent or inactive state; stir.3. To cause to be aware; alert or enlighten: The news wakened the king to his advisers' treachery.v.intr.1. To become awake; wake up: I plan to waken at six o'clock tomorrow. See Usage Note at wake1.2. To become aware: wakened to the truth.
[Middle English wakenen, from Old English wæcnan; see weg- in Indo-European roots.]
wak′en·er n.