imposition vs mixing

imposition

noun
  • The act of imposing, laying on, affixing, enjoining, inflicting, obtruding, and the like. 

  • A trick or deception put or laid on others. 

  • An unwelcome burden, presence, or obligation. 

  • That which is imposed, levied, or enjoined. 

  • Arrangement of a printed product’s pages on the printer's sheet so as to have the pages in proper order in the final product. 

  • A task imposed on a student as punishment. 

  • A practice of laying hands on a person in a religious ceremony; used e.g. in confirmation and ordination. 

mixing

noun
  • The act, or the result of making a mixture. 

adj
  • Of a stochastic process, to be asymptotically independent (in a precise mathematical sense). 

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