bordure vs sideline

bordure

noun
  • A contrasting border around a shield. 

sideline

noun
  • A line at the side of something. 

  • A line for hobbling an animal by connecting the fore and the hind feet of the same side. 

  • Something that is additional or extra or that exists around the edges or margins of a main item. 

  • Usually in the plural: the area outside the playing field beyond each sideline. 

  • The outside or perimeter of any activity. 

  • A line defining the side boundary of a playing field. Used in Canadian football, field lacrosse and basketball. 

  • A secondary road, especially a byroad at right angles to a main road. 

verb
  • To remove or keep out of circulation or out of the focus. 

  • To place on the sidelines; to bench or to keep someone out of play. 

How often have the words bordure and sideline occurred in a corpus of books? (source: Google Ngram Viewer )