CACOËTHES

‖Cac′o‐ë″thes (?), n. [[L., fr. Gr. �������� of ill habits, �� �������� an ill habit; κακόσ bad + � habit]] 1. 1. A bad custom or habit; an insatiable desire; as, cacoëthes scribendi, “The itch for writing”. Addison.
2. 2. (Med.) A bad quality or disposition in a disease; an incurable ulcer.