geomorphological vs syntactic

geomorphological

adj
  • Of or pertaining to geomorphology 

syntactic

adj
  • Of, related to or connected with syntax. 

  • Containing morphemes that are combined in the same order as they would be if they were separate words e.g. greenfinch 

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