medial vs middle

medial

adj
  • (of a speech sound) In the middle of a word. 

  • Of or pertaining to the media and/or the areas of the wing next to it. 

  • Pertaining to the inside; closer to the median plane of the body or the midline of an organ. 

  • Closer to the addressee. 

  • Of or pertaining to a mean or average. 

  • Pertaining to the middle layer of a blood vessel, to its tunica media. 

  • (of a consonant) Central: produced when air flows across the center of the mouth over the tongue. 

noun
  • One or more letters that occur in the middle of a word. 

  • Any of various things that occur in the middle. 

middle

adj
  • Pertaining to the middle voice. 

  • Located in the middle; in between. 

  • Central. 

noun
  • A centre, midpoint. 

  • The part between the beginning and the end. 

  • The middle stump. 

  • The central part of a human body; the waist. 

  • The middle voice. 

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