cholerine vs lask

cholerine

noun
  • Minor diarrhea that happens during outbreaks of cholera. 

lask

noun
  • Originally of both persons and animals, now only of animals: looseness of the bowels; diarrhoea; (countable) a bout of this ailment. 

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