kerf vs notch

kerf

verb
  • To cut a piece of wood or other material with several kerfs to allow it to be bent. 

noun
  • The portion or quantity (e.g. of wood, hay, turf, wool, etc.) removed or cut off in a given stroke. 

  • The distance between diverging saw teeth. 

  • The flattened, cut-off end of a branch or tree; a stump or sawn-off cross-section. 

  • The groove or slit created by cutting or sawing something; an incision. 

notch

verb
  • To cut a notch in (something). 

  • To achieve (something); to add to one's score or record of successes. 

  • To join by means of notches. 

  • To record (a score or similar) by making notches on something. 

  • To fit (an arrow) to a bow by means of the notch cut at the end of the arrow; to nock. 

noun
  • An indentation. 

  • A mountain pass; a defile. 

  • A discontinuous change in a taxation schedule. 

  • Woman. 

  • Such a cut, used for keeping a record. 

  • A level or degree. 

  • A portion of a mobile phone that overlaps the edge of the screen, used to house camera, sensors etc. while maximizing screen space. 

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