costumer

[ kos-too-mer, -tyoo-; ko-stoo-mer, -styoo- ]
/ ˈkɒs tu mər, -tyu-; kɒˈstu mər, -ˈstyu- /

noun

a person who makes, sells, or rents costumes, as for theatrical productions.
a clothes tree.

Origin of costumer

An Americanism dating back to 1860–65; costume + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for costumer