rearward vs tailpiece

rearward

noun
  • The part that comes last or is situated in the rear; conclusion, wind-up. 

  • The last troop; the rear of an army; a rear guard. 

adj
  • Toward the back or rear of something. 

adv
  • Toward the back or rear of something. 

tailpiece

noun
  • 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. 

  • A short joist between a header and a wall. 

  • 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 rearward and tailpiece occurred in a corpus of books? (source: Google Ngram Viewer )