awake: [OE] Awake was formed by adding the intensive prefix ā- to the verb wake (in Old English wacan or wacian, related to watch, and also ultimately to vegetable, vigil, and vigour). The adjective awake arose in the 13th century; it was originally a variant form of the past participle of the verb. => vigil, wake, watch[awake etymology, awake origin, 英语词源]