Webster's Revised Unabridged Dictionary · 1913

Sarcophagus

Sarcophagus , noun

[Latin, from Greek sarkofa`gos, properly, eating flesh; sa`rx, sa`rkos, flesh + fagei^n to eat. Compare Sarcasm.]

1.
A species of limestone used among the Greeks for making coffins, which was so called because it consumed within a few weeks the flesh of bodies deposited in it. It is otherwise called lapis Assius, or Assian stone, and is said to have been found at Assos, a city of Lycia. — Holland
2.
A coffin or chest-shaped tomb of the kind of stone described above; hence, any stone coffin.
3.
A stone shaped like a sarcophagus and placed by a grave as a memorial.