backslash vs beetle

backslash

verb
  • To escape (a metacharacter) by prepending a backslash that serves as an escape character, thereby forming an escape sequence. 

noun
  • The punctuation mark \. 

  • Used erroneously in reference to, or in reading out, the ordinary slash, that is, the punctuation mark /. 

  • |passage= […] I was trying to find a web-site for which I had been given the following address: http://www.isop.ucla.edu/pacrim/pubs/korjournal.htm. […] I began to work backwards, removing first the last part of the address following the last backslash (/korjournal.htm).}} 

beetle

verb
  • To move (away) quickly, to scurry away. 

  • To beat with a heavy mallet. 

  • To loom over; to extend or jut. 

  • To finish by subjecting to a hammering process in a beetle or beetling machine. 

adj
  • Protruding, jutting, overhanging. 

noun
  • A machine in which fabrics are subjected to a hammering process while passing over rollers, as in cotton mills; a beetling machine. 

  • Any of numerous species of insect in the order Coleoptera characterized by a pair of hard, shell-like front wings which cover and protect a pair of rear wings when at rest. 

  • A type of mallet with a large wooden head, used to drive wedges, beat pavements, etc. 

  • A game of chance in which players attempt to complete a drawing of a beetle, different dice rolls allowing them to add the various body parts. 

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