Bagatelle
literally a small bag or bundle, hence a trifle or thing of no importance. In literature the term is used to denote a plaything or a matter of little consequence. The game called bagatelle is played on a table with nine holes arranged at one end in the form of a diamond. Billiard balls are played up the table with a cue into these holes. The player who is most skillful in lodging his balls in the holes of greatest value wins.
Volume I · Aiton’s Encyclopedia