detachment vs increment

detachment

noun
  • A permanent unit organized for special duties. 

  • Indifference to the concerns of others; disregard; nonchalance; aloofness. 

  • The state of being detached or disconnected; insulation. 

  • The separation of a military unit from the main body for a particular purpose or special mission. 

  • The unit so dispatched. 

  • The action of detaching; separation. 

  • Absence of bias; impartiality; objectivity. 

  • Any smaller portion of a main body separately employed. 

increment

verb
  • To increase by steps or by a step, especially by one. 

noun
  • The amount of time added to a player's clock after each move. 

  • The amount of increase. 

  • The action of increasing or becoming greater. 

  • The waxing of the moon. 

  • An amplification without strict climax, as in the following passage: "Finally, brethren, whatsoever things are true, whatsoever things are honest, whatsoever things are just, whatsoever things are pure, whatsoever things are lovely, whatsoever things are of good report, […] think on these things." 

  • A syllable in excess of the number of the nominative singular or the second-person singular present indicative. 

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