<human>:  Where does the word ‘gangrene’ come from?
<bot>: The word gangrene comes from the Latin word gangrenosus, which means “rotten.” Gangrene is a medical condition that occurs when the body’s tissues become infected and die. Gangrene is often caused by a bacterial infection, but it can also be caused by a fungal infection. Gangrene is a very serious medical condition that can lead to amputation of the affected limb.