adjective

1. of, having, or caused by disease; unhealthy; diseased
2. resulting from or as from a diseased state of mind; esp., having or showing an unwholesome tendency to dwell on gruesome or gloomy matters
3. gruesome; grisly; horrible the morbid details of a story
4. of diseased parts; pathological morbid anatomy
5. Rare causing disease

Etymology: L morbidus, sickly, diseased < morbus, disease < IE base *mer-, to rub, wear away, destroy > mare, Lmortarium, OIr meirb, lifeless