from the GNU version of the Collaborative International Dictionary of English
- transitive v. To subdue; to daunt.
- v. To awaken; to arouse.
from The Century Dictionary and Cyclopedia
- To wake up; awake; come to.
- To awaken; arouse from sleep or swoon.
- To daunt; quell; cow.
- To moderate; abate.
- To become moderated or less vehement.
Sorry, no etymologies found.
K. has 'adaw, _to awaken_; but it is used by the poet Spencer _to slacken_'; hence the meaning I have given.]