n. 25B6; noun
a leftover from the 60s : RESIDUE, survivor, vestige, legacy.
put the leftovers in the fridge : LEAVINGS, uneaten food, remainder, scraps, remnants, remains; excess, surplus.
25B6; adjective leftover food : REMAINING, left, uneaten, unconsumed; excess, surplus, superfluous, unused, unwanted, spare.