copulate vs fsck

copulate

verb
  • To engage in sexual intercourse. 

adj
  • Joining subject and predicate; copulative. 

fsck

verb
  • To run fsck on; to perform a fsck on. 

name
  • The tool, fsck, that performs a fsck. 

noun
  • A *nix file system check to detect damage to, or corruption of, files or filesystem structures. 

intj
  • Fuck. 

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