The Collaborative International Dictionary of English v.0.48:
Chalk \Chalk\, v. t. [imp. & p. p. Chalked; p. pr. & vb. n.
1. To rub or mark with chalk.
2. To manure with chalk, as land. --Morimer.
3. To make white, as with chalk; to make pale; to bleach.
Let a bleak paleness chalk the door. --Herbert.
To chalk out, to sketch with, or as with, chalk; to
outline; to indicate; to plan. [Colloq.] "I shall pursue
the plan I have chalked out." --Burke.