cacoēthes (Latin) comes from Ancient Greek κακόηθες, from Ancient Greek κακοήθης, from Ancient Greek ἦθος, from Ancient Greek ἔθος, from Proto-Indo-European swe-dʰh₁-, from Proto-Indo-European dʰeh₁- — to do, put, place.
cacoēthes (Latin): A malignant tumour or disease