[a. F. costumier, f. costumer to COSTUME.] One who makes costumes; a dealer in costumes; esp. one who sells or lets out on hire costumes and properties for actors, masquers, etc.
1831. Blackw. Mag., XXIX. 509/2. Our modern costumiers take measure by algebra, and cut out by diagrams.
1862. Sat. Rev., XIII. 655/1. His painters and costumiers did their work to admiration.
1882. F. Harrison, Choice Bks. (1886), 307. A thing of costumiers and bric-à-brac dealers.