bagatelle vs bric-a-brac

bagatelle

noun
  • A game similar to billiards played on an oblong table with pockets or arches at one end only. 

  • A short piece of literature or of instrumental music, typically light or playful in character. 

  • Any of several smaller, wooden table top games developed from the original bagatelle in which the pockets are made of pins; also called pin bagatelle, hit-a-pin bagatelle, jaw ball. 

  • A trifle; an insubstantial thing. 

verb
  • To meander or move around, in a manner similar to the ball in the game of bagatelle. 

  • To bagatellize; to regard as a bagatelle. 

bric-a-brac

noun
  • Small ornaments and other miscellaneous display items of little value. 

  • Any collection containing a variety of miscellaneous items; a hodgepodge, an olio. 

How often have the words bagatelle and bric-a-brac occurred in a corpus of books? (source: Google Ngram Viewer )