imagery vs tropology

imagery

noun
  • Rhetorical decoration in writing or speaking; vivid descriptions presenting or suggesting images of sensible objects; figures in discourse. 

  • Imitation work. 

  • Images in general, or en masse. 

  • Unreal show; imitation; appearance. 

  • The work of the imagination or fancy; false ideas; imaginary phantasms. 

  • The work of one who makes images or visible representation of objects. 

tropology

noun
  • The use of a trope (metaphor or figure of speech). 

  • The interpretation of scripture or other work in order to educe moral or figurative meaning; a treatise of such interpretation. 

  • A recurring motif or metaphor, a trope; an interplay of tropes. 

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