fosterage vs guidance

fosterage

noun
  • The act of promoting or encouraging something. 

  • The act of fostering another's child as if it were one's own. 

  • The act of caring for another human being or animal. 

  • The condition of being the foster child. 

guidance

noun
  • The act or process of guiding. 

  • Any process or system to control the path of a vehicle, missile etc. 

  • Advice or counselling on some topic. 

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