ഭിഷ്മ (Malayalam) comes from Sanskrit भीष्म, from Sanskrit भी, from Proto-Indo-Aryan bʰíHs, from Proto-Indo-Iranian bʰayH-, from Proto-Indo-European bʰíh₂s, from Proto-Indo-European bʰeyh₂- — to fear, be afraid; to strike, hit; to hew, cut.
ഭിഷ്മ (Malayalam): Bhishma