deprecate vs slate

deprecate

verb
  • To belittle or express disapproval of. 

  • To declare something obsolescent; to recommend against a function, technique, command, etc. that still works but has been replaced. 

slate

verb
  • To criticise harshly. 

  • To cover with slate. 

  • To schedule. 

  • To set a dog upon (a person). 

  • To anticipate or strongly expect. 

  • To nominate, appoint, or designate. 

noun
  • An artificial material resembling slate and used for the same purposes. 

  • A list of affiliated candidates for an election. 

  • A record of money owed. 

  • A tablet computer. 

  • A thin plate of any material; a flake. 

  • A fine-grained homogeneous sedimentary rock composed of clay or volcanic ash which has been metamorphosed so that it cleaves easily into thin layers. 

  • The bluish-grey colour of most slate. 

  • A chalkboard, sheet of slate for writing on with chalk or with a thin rod of slate (a slate pencil) formerly commonly used by both students and teachers in schools. 

  • A roofing-tile made of slate. 

adj
  • Having the bluish-grey/gray colour of slate. 

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