a. Obs. rare. [a. F. cacoèthe, ad. Gr. κακοήθης: see next. But in the examples, the word may represent L. cacoēthē pl. of the sb.] Of an ill habit; malignant (as a disease).
1541. R. Copland, Galyens Terap., 2 C iv b. It had ben better to haue called them [ulcers] Cacoethe, that is to say wycked, and nat inueterate.
1661. Lovell, Hist. Anim. & Min., 119. It helpes hardnesses, that are called cocoëth.