[Said to be from the name of the 1st Earl Cadogan (died 1726). See Littré, and N. & Q., 7th Ser. IV. 467, 492.] A mode of knotting the hair behind the head.
c. 1780. B’ness D’Oberkirch, Mem. (1852), II. ix. 196. The duchess of Bourbon had introduced at the court of Montbéliard … [the fashion] of cadogans, hitherto worn only by gentlemen.
