birch vs starboard

birch

noun
  • A birch-bark canoe. 

  • A hard wood taken from the birch tree, typically used to make furniture. 

  • A stick, rod or bundle of twigs made from birch wood, used for punishment. 

  • Any of various trees of the genus Betula, native to countries in the Northern Hemisphere. 

verb
  • To punish with a stick, bundle of twigs, or rod made of birch wood. 

  • To punish as though one were using a stick, bundle of twigs, or rod made of birch wood. 

starboard

noun
  • The righthand side of a ship, boat or aircraft when facing the front, or fore or bow. Used to unambiguously refer to directions according to the sides of the vessel, rather than those of a crew member or object. 

  • One of the two traditional watches aboard a ship standing a watch in two. 

verb
  • To put to the right, or starboard, side of a vessel. 

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