associate vs auxiliary

associate

noun
  • A person united with another or others in an act, enterprise, or business; a partner. 

  • A companion; a comrade. 

  • One that habitually accompanies or is associated with another; an attendant circumstance. 

  • One of a pair of elements of an integral domain (or a ring) such that the two elements are divisible by each other (or, equivalently, such that each one can be expressed as the product of the other with a unit). 

  • Somebody with whom one works, coworker, colleague. 

  • A member of an institution or society who is granted only partial status or privileges. 

verb
  • To connect or join together; combine. 

  • To join as a partner, ally, or friend. 

  • To endorse. 

  • To join in or form a league, union, or association. 

  • To spend time socially; keep company. 

  • To be associative. 

  • To connect evidentially, or in the mind or imagination. 

adj
  • Joined with another or others and having lower status. 

  • Having partial status or privileges. 

  • Following or accompanying; concomitant. 

auxiliary

noun
  • A person or group that acts in an auxiliary manner. 

  • An auxiliary verb. 

  • A marching band colorguard. 

  • A sailing vessel equipped with an engine. 

adj
  • Supplementary or subsidiary. 

  • Helping; giving assistance or support. 

  • Held in reserve for exceptional circumstances. 

  • Of a ship, having both sails and an engine. 

  • Relating to an auxiliary verb. 

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