elliptical vs ergative

elliptical

adj
  • Of, or showing ellipsis; having a word or words omitted. 

  • Elliptic. 

  • Concise, condensed. 

  • In a shape of, or reminding of, an ellipse; oval. 

noun
  • An elliptical trainer. 

  • An elliptical galaxy. 

ergative

adj
  • With the subject of a transitive construction having grammatical cases or thematic relations different from that of an intransitive construction. 

noun
  • An ergative verb or other expression. 

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