geomorphologic vs phonological

geomorphologic

adj
  • Of or pertaining to geomorphology; geomorphological 

phonological

adj
  • Of or relating to phonology. 

  • Pertaining to the way sounds function in languages, including phonemes, syllable structure, stress, and accent. 

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