grid (n.)

cooking utensil for broiling over a fire, early 14c., griderne, alteration (by association with iron) of gridire (late 13c.), a variant of gridil (see griddle). Confusion of "l" and "r" was common in Norman dialect. Also a medieval instrument of torture by fire. As the word for a U.S. football field, by 1896, for its lines.

shallow frying pan, early 13c., apparently from Anglo-French gridil, Old North French gredil, altered from Old French graille "grill, grating," from Latin craticula "small griddle" (see grill (n.)). Griddle-cake is from 1783.

1980 (n.); 1987 (v.); from grid (n.) + lock (n.1). Related: Gridlocked; gridlocking.