costumist vs designer

costumist

noun

  • A costumier. 

designer

noun

  • A person who designs something, or who designs things as a profession. 

  • A plotter or schemer. 

  • A software tool for designing things. 

adj

  • Created by a designer, especially a fashion designer. 

How often have the words costumist and designer occurred in a corpus of books? (source: Google Ngram Viewer )