clysterium
From LSJ
Ἡ δ' ἐμὴ ψυχὴ πάλαι τέθνηκεν, ὥστε τοῖς θανοῦσιν ὠφελεῖν → My soul died long ago so that I could give some help to the dead
clystērĭum: ii, n., = κλυστήριον,
I a clyster (late Lat.), Scrib. Comp. 114; 118; Paul. ex Fest. p. 78, 13 Müll.