Assassin

as-as′in, n. one who, usually for a reward, kills by surprise or secretly.— v.t. A as′sinate , to murder by surprise or secret a ault: ( Milton ) to maltreat: also figuratively, to destroy by treacherous means, as a reputation.— n. ( obs. ) one who a a inates.— ns. A a inā′tion , secret murder; A as′sinator . [Through Fr. or It. from Ar. hashshāshīn , 'hashish-eaters,' a military and religious order in Syria, of the 11th century, who became notorious for their secret murders in obedience to the will of their chief, and fortified themselves for their adventures by hashish , an intoxicating drug or drink made from hemp.]