殊死

殊死	shū sǐ	to behead / capital punishment / desperate struggle / life-and-death
殊	shū	(literary) to kill; to behead; to sever; to separate; to surpass / (bound form) different / (bound form) special; remarkable / (literary) very; extremely
死	sǐ	to die / impassable / uncrossable / inflexible / rigid / extremely / damned