deponent vs deposition

deponent

noun
  • A witness; especially one who gives information under oath, in a deposition concerning facts known to him or her. 

  • A deponent verb. 

adj
  • Having passive grammatical form (that is, conjugating like the passive voice), but an active meaning. 

deposition

noun
  • The process of taking sworn testimony out of court; the testimony so taken. 

  • The removal of someone from office. 

  • The production of a thin film of material onto an existing surface. 

  • The formation of snow or frost directly from water vapor. 

  • The act of depositing material, especially by a natural process; the resultant deposit. 

  • The formal placement of relics in a church or shrine, and the feast day commemorating it. 

  • The transformation of a gas into a solid without an intermediate liquid phase (reverse of sublimation) 

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