addendum vs adjunct

addendum

noun
  • Something to be added; especially text added as an appendix or supplement to a document. 

  • The height by which the tooth of a gear projects beyond (outside for external, or inside for internal) the standard pitch circle or pitch line. 

  • A postscript. 

adjunct

noun
  • An appendage; something attached to something else in a subordinate capacity. 

  • An unmalted grain or grain product that supplements the main mash ingredient. 

  • A dispensable phrase in a clause or sentence that modifies its meaning. 

  • A constituent which is both the daughter and the sister of an X-bar. 

  • Symploce. 

  • One of a pair of morphisms which relate to each other through a pair of adjoint functors. 

  • A person associated with another, usually in a subordinate position; a colleague. 

  • A key or scale closely related to another as principal; a relative or attendant key. 

adj
  • Added to a faculty or staff in a secondary position. 

  • Connected in a subordinate function. 

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