extremity vs lith

extremity

noun
  • A limb (“major appendage of a human or animal such as an arm, leg, or wing”). 

  • The most extreme or furthest point of something. 

  • A hand or foot. 

  • An extreme measure. 

lith

noun
  • A limb; any member of the body. 

  • A joint; a segment or symmetrical part or division. 

  • A segment of an orange, or similar fruit. 

  • Property. 

  • coccolith 

  • A gate; a gap in a fence. 

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