exogenous vs extraneous

exogenous

adj
  • Produced or originating outside of an organism. 

  • Growing as an exogen, by successive additions to the outside. 

  • Related to the exogen growth phase. 

  • Having no meaning in itself, such as an automatically generated sequential identifier. 

  • Having a cause external to the infected organism. 

  • Being or relating to a change that comes from outside the model and is not explained by the model. 

extraneous

adj
  • Not belonging to, or dependent upon, a thing; without or beyond a thing; foreign 

  • Not essential or intrinsic 

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