mediopassive vs middle voice

mediopassive

noun
  • A mediopassive construction; a phrase that uses the mediopassive voice. 

adj
  • Pertaining to a voice of a transitive verb that is both middle voice and passive voice or reflexive and passive voice. 

middle voice

noun
  • A voice that is neither active nor passive, because the subject of the verb cannot be categorized as either agent or patient, having elements of both. 

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