sick vs subnormal

sick

adj
  • In poor condition. 

  • Having an urge to vomit. 

  • In bad taste. 

  • Very good, excellent, awesome, badass. 

  • Tired of or annoyed by something. 

  • Mentally unstable, disturbed. 

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

  • In poor health; ill. 

verb
  • To fall sick; to sicken. 

  • To vomit. 

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. 

subnormal

adj
  • Less than normal. 

  • denormal 

noun
  • A person whose abilities are less than normal. 

  • That part of the axis of a curved line which is intercepted between the ordinate and the normal. 

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