complication vs hiccup

complication

noun
  • The act or process of complicating. 

  • A person who doesn't fit in with the main scheme of things; an interloper. 

  • The state of being complicated; intricate or confused relation of parts; complexity. 

  • A feature beyond basic time display in a timepiece. 

  • A disease or diseases, or adventitious circumstances or conditions, coexistent with and modifying a primary disease, but not necessarily connected with it. 

hiccup

noun
  • A minor setback. 

  • Any spasm or sudden change. 

  • A spasm of the diaphragm, or the resulting sound. 

verb
  • To produce an abortive sound like a hiccup. 

  • To produce a hiccup; have the hiccups. 

  • To say with a hiccup. 

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