Meaning

verb become active

verb force or drive out

verb cause to be agitated, excited, or roused

originFrom Middle English rousen, from Anglo-Norman reuser, ruser, originally used in English of hawks shaking the feathers of the body, from Latin recūsō, by loss of the medial 'c.' Doublet of recuse. Figurative meaning “to stir up, provoke to activity” is from 1580s; that of “awaken” is first recorded 1590s.

Etymology from Wiktionary, CC BY-SA 3.0