relapse vs zig

relapse

noun
  • The act or situation of relapsing. 

  • An occasion when a person becomes ill again after a period of improvement 

verb
  • To slip or slide back physically; to turn back. 

  • To fall back again; to slide or turn back into a former state or practice. 

  • To return to a vice, especially self-harm or alcoholism, failing to maintain abstinence. 

  • To recur; to worsen, be aggravated (after a period of improvement). 

zig

noun
  • A sudden or sharp turn or change of direction. 

verb
  • To make such a turn. 

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