rocky vs sick

rocky

adj
  • Encountering many problems; difficult, troubled; also, in danger or distress. 

  • In the style of rock music. 

  • Abounding in, or full of, rocks; consisting of rocks. 

  • Like a rock; rigid, solid. 

  • Having a habitat around or on rocks. 

  • Easily rocked; unstable. 

  • Of a person: ill, or unsteady (for example, as a result of a shock). 

sick

adj
  • Mentally unstable, disturbed. 

  • Having an urge to vomit. 

  • In poor condition. 

  • In bad taste. 

  • Very good, excellent, awesome, badass. 

  • Tired of or annoyed by something. 

  • Failing to sustain adequate harvests of crop, usually specified. 

  • In poor health; ill. 

noun
  • (especially in the phrases on the sick and on long-term sick) Any of various current or former benefits or allowances paid by the Government to support the sick, disabled or incapacitated. 

  • Vomit. 

verb
  • To fall sick; to sicken. 

  • To vomit. 

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