axiological vs rudimentary

axiological

adj
  • Of or relating to values themselves. 

  • Of or relating to value theory, the philosophical field of axiology. 

rudimentary

adj
  • Of or relating to one or more rudiments. 

  • Basic; minimal; with less than, or only the minimum, necessary. 

noun
  • One of the rudimentary mammae of boars. 

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