disquaire
A disc jockey, especially one in a French-speaking country.
dated
Some discothèques allow their patrons to suggest tunes to the disquaire, but at many such an impertinence would be unthinkable—like asking Pablo Casals to play Melancholy Baby.
Where it comes from
Borrowed, with a change in meaning, from French disquaire (“record dealer; record shop”).
Adapted from the Wiktionary entry disquaire (CC BY-SA 4.0).