Is it ensure, insure, or assure?
member of a Muslim sect centered in Lebanon, 1786, from Arabic duruz, plural of darazi, from name of the sect founder, Ismail ad-Darazi (11c.), literally "Ismail the Tailor."
n. pl. dru·sen (drōō'zən)
One of the small hyaline or colloid bodies sometimes occurring behind the retina of the eye.