Why is the ninth month called September?
c.1200, "one of the mixed Scandinavian-Frankish people who conquered England in 1066," from Old French Normanz, plural of Normand, Normant, literally "North man," from a Scandinavian word meaning "northman" (see Norse), in reference to the Scandinavian people who overran and occupied Normandy 10c. Later meaning "one of the Norman French who conquered England in 1066." As an adjective from 1580s. As a style of architecture, developed in Normandy and employed in England after the conquest, it is attested from 1797. Norseman (1817) is not historical and appears to be due to Scott.