coath vs morbus

coath

noun
  • Sickness; disease; pestilence. 

  • An attack of illness, such as swooning, pangs of childbirth, etc. 

  • A disease affecting sheep or cattle. 

verb
  • To faint. 

  • To give (sheep, cattle) the coe or rot. 

morbus

noun
  • A disease. 

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