ayah vs childminder

ayah

noun
  • A South Asian female servant, maid or nanny, historically, often one working for Europeans in South Asia. 

  • A verse in the Quran. 

childminder

noun
  • A person employed to look after other people's children while they are away; a babysitter. 

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