concomitance vs mixture

concomitance

noun
  • A concomitant. 

  • occurrence or existence together or in connection with one another, coexistence 

  • The Roman Catholic doctrine of the existence of the entire body of Christ in the Eucharist, under each element, so that the body and blood are both received by communication in one kind only. 

mixture

noun
  • The act of mixing. 

  • A medicinal compound, typically a suspension of a solid in a solution 

  • A compound organ stop. 

  • A cloth of variegated colouring. 

  • Something that consists of diverse elements. 

  • A mix of different dry foods as a snack, especially chevda or Bombay mix. 

  • Something produced by mixing. 

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