appendage vs tailpiece

appendage

noun
  • A part that is joined to something larger. 

  • An external body part that projects from the body. 

  • A natural prolongation or projection from a part of any organism. 

tailpiece

noun
  • A short joist between a header and a wall. 

  • An appendage or appendix. 

  • An element, often triangular, to which the strings of a violin, guitar, etc. are attached at the lower end of an instrument. 

  • The part of a telescope containing the adjusting device for the eyepiece, etc. 

  • The part of a lock that transmits motion from the hub to the latch bolt. 

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