To carry away the meal from the grave. The Greeks and Persians used to make feasts at certain seasons (when the dead were supposed to return to their graves), and leave the fragments of their banquets on the tombs (Eleemosʹynam sepulʹcri patʹris).
With one foot in the grave. At the very verge of death. The expression was used by Julian, who said he would “learn something even if he had one foot in the grave.” The parallel Greek phrase is, “With one foot in the ferryboat,” meaning Charon’s.