affirm vs depose

affirm

verb
  • To state under a solemn promise to tell the truth which is considered legally equivalent to an oath, especially of those who have religious or other moral objections to swearing oaths; also solemnly affirm. 

  • To make firm; to confirm, or ratify; especially (law) to assert or confirm, as a judgment, decree, or order, brought before an appellate court for review. 

  • To agree, verify or concur; to answer positively. 

  • To assert positively; to tell with confidence; to aver; to maintain as true. 

  • To support or encourage. 

depose

verb
  • To take or swear an oath. 

  • To testify; to bear witness; to claim; to assert; to affirm. 

  • To put down; to lay down; to deposit; to lay aside; to put away. 

  • To interrogate and elicit testimony from during a deposition; typically done by a lawyer. 

  • To remove (a leader) from (high) office, without killing the incumbent. 

  • To give evidence or testimony, especially in response to interrogation during a deposition 

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