dower vs heighten

dower

verb
  • To give a dower or dowry to. 

  • To endow. 

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. 

heighten

verb
  • To make high; to raise higher; to elevate. 

  • To advance, increase, augment, make larger, more intense, stronger etc. 

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