grille (n.) Look up grille at Dictionary.com
"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].