The Collaborative International Dictionary of English v.0.48:
Chaw \Chaw\, v. t. [imp. & p. p. Chawed; p. pr. & vb. n.
Chawing.] [See Chew.]
1. To grind with the teeth; to masticate, as food in eating;
to chew, as the cud; to champ, as the bit.
The trampling steed, with gold and purple trapped,
Chawing the foamy bit, there fiercely stood.
2. To ruminate in thought; to consider; to keep the mind
working upon; to brood over. --Dryden.
Note: A word formerly in good use, but now regarded as