amah vs turnspit

amah

noun
  • a female domestic helper. 

  • a woman employed to look after children; (formerly) a wet nurse. 

turnspit

noun
  • A person employed in turning a spit for the purpose of roasting meat. 

  • Synonym of roasting jack 

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