modern vs rudimentary

modern

adj
  • Pertaining to the modern period (c.1800 to contemporary times), particularly in academic historiography. 

  • Pertaining to a current or recent time and style; not ancient. 

noun
  • Someone who lives in modern times. 

rudimentary

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

  • Of or relating to one or more rudiments. 

noun
  • One of the rudimentary mammae of boars. 

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