noun, plural cos·tum·i·ers [ko-stoo-mee-erz, -styoo-; French kaws-ty-myey] /kɒˈstu mi ərz, -ˈstyu-; French kɔs tüˈmyeɪ/.
Examples from the Web for costumier
Beyond that there was the purchase of a good second-hand uniform, fur coat, and a beard and a wig from a costumier's.The Old Man in the Corner|Baroness Orczy
He must surrender himself unconditionally to the costumier, and obey implicitly his behests.A Book of the Play|Dutton Cook
Upon the tab of her coat she was wearing was the name of a costumier: 'Sartori, Via Roma.'The Sign of Silence|William Le Queux
To make a pretty picture at the expense of drama is merely to pander to the voracity of the costumier and scene-painter.The Beggar's Opera|John Gay
A costumier hung out wigs, and masks, and débardeur garments next door to the restaurateur.In the Days of My Youth|Amelia Ann Blandford Edwards