I. ˈchȯk noun
Etymology: Middle English, from Old English cealc, from Latin calc-, calx lime; akin to Greek chalix pebble
Date: before 12th century
1.
a. : a soft white, gray, or buff limestone composed chiefly of the shells of foraminifers
b. : a prepared form of chalk or a material resembling chalk especially when used (as for writing on blackboards) as a crayon
2.
a. : a mark made with chalk
b. British : a point scored in a game
• chalky ˈchȯ-kē adjective
II. verb
Date: 1580
transitive verb
1. : to write or draw with chalk
2. : to rub or mark with chalk
chalk a pool cue
3.
a. : to delineate roughly : sketch
chalk out a plan of attack
b. : to set down or add up with or as if with chalk : record — usually used with up
chalk up the totals
intransitive verb
: to become chalky
the paint had begun to chalk