cray·on 
(krāŏn′, -ən)
(krāŏn′, -ən)n.
1. A stick of colored wax, charcoal, or chalk, used for drawing.
2. A drawing made with one of these sticks.
tr.v. cray·oned, cray·on·ing, cray·ons
To draw, color, or decorate with a stick of colored wax, charcoal, or chalk.
[French, diminutive of craie, chalk, from Latin crēta.]
crayon·ist (-ə-nĭst), crayon·er (-ə-nər) n.