- assassin
- 1530s (in Anglo-L. from mid-13c.), via Fr. and It., from Arabic hashishiyyin "hashish-users," pl. of hashishiyy, from hashish (q.v.). A fanatical Ismaili Muslim sect of the time of the Crusades, under leadership of the "Old Man of the Mountains" (translates Arabic shaik-al-jibal, name applied to Hasan ibu-al-Sabbah), with a reputation for murdering opposing leaders after intoxicating themselves by eating hashish. The pl. suffix -in was mistaken in Europe for part of the word (cf. Bedouin).