aft vs coaster

aft

noun
  • The stern portion of a vessel. 

adv
  • At, near, or towards the stern of a vessel (with the frame of reference within the vessel). 

adj
  • located at the back of a boat, ship, or airplane 

coaster

noun
  • A merchant vessel that stays in coastal waters, especially one that travels between ports of the same country. 

  • One who succeeds while making only a minimal effort. 

  • A person who uses a sled or toboggan to slide down a slope covered with ice or snow; a sledder, a tobogganist. 

  • A person who originates from or inhabits a coastal area. 

  • An itinerant person who shirks work but still seeks food and lodging; a loafer, a sundowner. 

  • A useless compact disc or DVD, such as one that was burned incorrectly or has become corrupted. 

  • A cow from the coastal part of Texas. 

  • A sailor (especially the master or pilot of a vessel) who travels only in coastal waters. 

  • A small, flat or tray-like object on which a bottle, cup, glass, mug, etc., is placed to protect a table surface from drink spills, heat, or water condensation. 

  • A sled or toboggan. 

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