dipsomaniac vs drinker

dipsomaniac

noun
  • A persistently drunken person; a drunkard. 

  • One with a morbid paroxysmal craving for alcohol; an alcoholic. 

drinker

noun
  • Someone who drinks alcoholic beverages on a regular basis. 

  • A device from which animals can drink. 

  • A pub. 

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