formation vs throwback

formation

noun
  • Something possessing structure or form. 

  • An arrangement of players designed to facilitate certain plays. 

  • An arrangement of moving troops, ships, or aircraft, such as a wedge, line abreast, or echelon. Often "in formation". 

  • A structure made of two categories, two functors from the first to the second category, and a transformation from one of the functors to the other. 

  • The act of assembling a group or structure. 

  • The process during which something comes into being and gains its characteristics. 

  • A layer of rock of common origin. 

  • A grouping of military units or smaller formations under a command, such as a brigade, division, wing, etc. 

  • The process of influencing or guiding a person to a deeper understanding of a particular vocation. 

throwback

noun
  • An organism that has characteristics of a more primitive form. 

  • A reversion to an earlier stage of development. 

  • An atavism. 

  • Coordinate terms: nowhere income, throwout 

  • A person considered to be primitive, uncivilized and mentally deficient. 

  • A person or thing that evokes memories. 

  • A practice to avoid untaxed nowhere income by instead taxing such income in the originating state for a given transaction. 

  • A person similar to an ancestor, or something new similar to what already existed. 

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