Borrowed from French grille.

• IPA: /ɡɹɪl/

grille (plural grilles)

1. Alternative form of grill (only in the senses of "grating over opening", "grating on the front of a vehicle", and "window divider")
   • 1907 August, Robert W[illiam] Chambers, chapter I, in The Younger Set, New York, N.Y.: D. Appleton & Company, →OCLC ↗:

     The house was a big elaborate limestone affair, evidently new. Winter sunshine sparkled on lace-hung casement, on glass marquise, and the burnished bronze foliations of grille and door.