A bad quality or disposition in a disease; an incurable ulcer.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "cacoethes" in a sentence
"Among the rest she was seized with what we men call a cacoethes of the needle: "a raging desire" for work."
"'Tis most true, tenet insanabile multos scribendi cacoethes, and  there is no end of writing of books, as the wiseman found of old, in this  scribbling age, especially wherein  the number of books is without number, (as a worthy man saith,) presses be oppressed, and out of an itching humour that every man hath to show himself,  desirous of fame and honour"
"Trimalchionian episode, and the subsequent pamphleteering would by no means eradicate this "cacoethes emendandi.""