dower vs endowment

dower

noun
  • The part of or interest in a deceased husband's property provided to his widow, usually in the form of a life estate. 

  • Property given by a groom directly to his bride at or before their wedding in order to legitimize the marriage; dowry. 

verb
  • To endow. 

  • To give a dower or dowry to. 

endowment

noun
  • Property or funds invested for the support and benefit of a person or not-for-profit institution. 

  • Something with which a person or thing is endowed. 

  • Endowment assurance or pure endowment. 

  • A ceremony designed to prepare participants for their role in the afterlife. 

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