substramen
From LSJ
Ἀναξαγόρας δύο ἔλεγε διδασκαλίας εἶναι θανάτου, τόν τε πρὸ τοῦ γενέσθαι χρόνον καὶ τὸν ὕπνον → Anaxagoras used to say that we have two teachers for death: the time before we were born and sleep | Anaxagoras said that there are two rehearsals for death: the time before being born and sleep
substrāmen: ĭnis, n. substerno,
I what is strewn under, litter: molle, Varr. R. R. 3, 10, 4; 3, 6, 5; 3, 9, 8.—
II Transf., supports: lubrica roboreis aderant substramina plaustris, i. e. rollers, Sil. 12, 444.
