groove vs trepan

groove

noun
  • A shaft or excavation. 

  • A long, narrow channel or depression; e.g., such a slot cut into a hard material to provide a location for an engineering component, a tyre groove, or a geological channel or depression. 

  • A racing line, a path across the racing circuit's surface that a racecar will usually track on. (Note: There may be multiple grooves on any particular circuit or segment of circuit) 

  • The middle of the strike zone in baseball where a pitch is most easily hit. 

  • A fixed routine. 

  • A pronounced, enjoyable rhythm. 

verb
  • To perform, dance to, or enjoy rhythmic music. 

  • To cut a groove or channel in; to form into channels or grooves; to furrow. 

trepan

noun
  • A tool used to bore through rock when sinking shafts. 

  • A surgical instrument used to remove a circular section of bone from the skull; a trephine. 

verb
  • To create a large hole by making a narrow groove outlining the shape of the hole and then removing the plug of material remaining by less expensive means. 

  • To use a trepan; to trephine. 

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