ellipsis vs tropology

ellipsis

noun
  • The omission of a word or phrase that can be inferred from the context. 

  • A mark consisting of (in English) three periods, historically or more formally with spaces in between, before, and after them, " . . . ", or, more recently, a single character, "…", used to indicate that words have been omitted in a text or that they are missing or illegible, or (in mathematics) that a pattern continues (e.g., 1, ..., 4 means 1, 2, 3, 4). 

  • The omission of scenes in a film that do not advance the plot. 

tropology

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

  • 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. 

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