breech vs obscure

breech

adj
  • Born, or having been born, breech. 

noun
  • The part of a cannon or other firearm behind the chamber. 

  • A breech birth. 

  • A garment whose purpose is to cover or clothe the buttocks. 

  • The external angle of knee timber, the inside of which is called the throat. 

adv
  • With the hips coming out before the head. 

verb
  • To fit or furnish with a breech. 

  • To fasten with breeching. 

obscure

adj
  • Not well-known. 

  • Dark, faint or indistinct. 

  • Difficult to understand. 

  • Hidden, out of sight or inconspicuous. 

  • Unknown or uncertain; unclear. 

verb
  • To hide, put out of sight etc. 

  • To render obscure; to darken; to make dim; to keep in the dark; to hide; to make less visible, intelligible, legible, glorious, beautiful, or illustrious. 

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