"confuse as to direction," 1650s, from French désorienter "to cause to lose one's bearings," literally "to turn from the east," from dés- (see dis-) + orienter (see orient (v.)). Related: Disoriented; disorienting.
At the end of this labyrinth, when he had little guess where he had been conducted, and was, according to the French phrase, totally desorienté, (etc.). [Scott, "Redgauntlet," 1824]
updated on August 15, 2021