fosterage vs maintenance

fosterage

noun
  • The condition of being the foster child. 

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

  • The act of promoting or encouraging something. 

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

maintenance

noun
  • Child support. 

  • The natural process which keeps an organism alive. 

  • Actions performed to keep some machine or system functioning or in service. 

  • A tort and (in some jurisdictions) an offence committed when a third party who does not have a bona fide interest in a lawsuit provides help or acquires an interest to a litigant's lawsuit. 

  • Alimony, a periodical payment or a lump sum made or ordered to be made to a spouse after a divorce. 

  • Money required or spent to provide for the needs of a person or a family. 

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