ancilla vs subsidiary

ancilla

noun
  • An auxiliary or accessory 

  • A maid. 

subsidiary

noun
  • One who aids or supplies; an assistant. 

  • A company owned by a parent company or a holding company, also called daughter company or sister company. 

  • A subordinate theme. 

adj
  • Of or relating to a subsidy. 

  • Auxiliary or supplemental. 

  • Secondary or subordinate. 

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