Morbus

I thought he were took with the Morbus one day, I did with his nasty angle! For “oh dear,” says he, and burst out in a cry, “oh my gut is all got of a tangle!”

Source: wiktionary

Probably no small share of our cholera morbuses, diarrhœas, and dysenteries, have their origin in this source.

Source: wiktionary

Unfortunately, most of the morbi accepted in modern medicine are only taxonomic entities whose causal derivation is merely partially known and therefore polygenic.

Source: wiktionary