bag·a·telle 
(băg′ə-tĕl)
(băg′ə-tĕl)n.
1. An unimportant or insignificant thing; a trifle.
2. A short, light piece of verse or music.
3. A game played on an oblong table with a cue and nine balls.
[French, from Italian bagatella, diminutive of dialectal bagata, little property, possibly from Latin bāca, berry.]