Cyst-leás

According to the Old English Dictionary:

cyst-leás

adj. Fruitless, reprobate; reprŏbus :-- Him [God] ðá se cystleása [Cain] cwealmes wyrhta andswarode then the reprobate [man] Cain, the worker of murder, answered God, Cd. 48; Th. 61, 28; Gen. 1004. cyst-leas