Scottish National Dictionary (1700–)
1. “The circle for the marbles in the boys' game of marbles” (Arg.1 1929).
2. “A game of marbles, in which a circle, square, or triangle with intersecting lines is drawn, and a marble placed at the end of each line and at the point of intersection. The object of the players is to knock the marbles out of the “brook” from a stance some ten or twelve feet away” (Id.).
Arg. 1901 R. C. Maclagan Games and Diversions of Arg. 154:
The rules for high knuckle and pairs apply. A plunker remaining in the ring must be struck out under penalty of loss of a marble, which is put within the mark in The Ring and The Brook.
You may wish to vary the format shown below depending on the citation style used.
"Brook n.3". Dictionary of the Scots Language. 2004. Scottish Language Dictionaries Ltd. Accessed 15 Dec 2017 <http://www.dsl.ac.uk/entry/snd/brook_n3>
Try an Advanced Search