grille (n.)Related entries & more
"ornamental grating," 1660s, from French grille (fem.) "grating," from Old French greille "gridiron," from Latin craticula "gridiron, small grill" (see grill (n.)). "The distinction in Fr[ench] between grille and grill ... appears to date from about the 16th c." [OED].
grill (n.)Related entries & more
"gridiron, grated utensil for broiling over a fire," 1680s, from French gril, from Old French greil, alteration of graille "grill, grating, railings, fencing" (13c.), from Latin craticula "gridiron, small griddle," diminutive of cratis "wickerwork," perhaps from a suffixed form of PIE *kert- "to turn, entwine." Grill-room "lunchroom where steaks, chops, etc. are grilled to order" (1869) came to be used for "informal restaurant," hence grill as a short form in this sense (by 1910). In many instances, Modern English grill is a shortened form of grille, such as "chrome front of an automobile."