entail vs medial

entail

noun
  • That which is entailed. 

  • An estate in fee entailed, or limited in descent to a particular class of issue. 

  • The rule by which the descent is fixed. 

verb
  • To imply, require, or invoke. 

  • To settle or fix inalienably on a person or thing, or on a person and his descendants or a certain line of descendants; -- said especially of an estate; to bestow as a heritage. 

medial

noun
  • Any of various things that occur in the middle. 

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

adj
  • 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. 

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

  • 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. 

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