assume vs vacate

assume

verb
  • To receive, adopt (a person) 

  • To adopt a feigned quality or manner; to claim without right; to arrogate 

  • To authenticate by means of belief; to surmise; to suppose to be true, especially without proof 

  • To take on a position, duty or form 

  • To adopt (an idea or cause) 

vacate

verb
  • To have a court judgement set aside; to annul. 

  • To leave an area, usually as a result of orders from public authorities in the event of a riot or natural disaster. 

  • To leave an office or position. 

  • To move out of a dwelling, either by choice or by eviction. 

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