dilapidation vs senescence

dilapidation

noun
  • The state of being dilapidated, reduced to decay, partially ruined. 

  • Ecclesiastical waste: impairing of church property by an incumbent, through neglect or intentionally. 

  • The act of dilapidating, damaging a building or structure through neglect or intentionally. 

  • Money paid at the end of an incumbency by the incumbent or his heirs for the purpose of putting the parsonage etc. in good repair for the succeeding incumbent. 

senescence

noun
  • Condition when the cell ceases to divide. 

  • Old age; accumulated damage to macromolecules, cells, tissues and organs with the passage of time. 

  • The state or process of ageing, especially in humans; old age. 

  • Fruit senescence, leading to ripening of fruit. 

  • Ceasing to divide by mitosis because of shortening of telomeres or excessive DNA damage. 

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