φωτισμός
From LSJ
τίς δ' οἶδεν εἰ τὸ ζῆν μέν ἐστι κατθανεῖν, τὸ κατθανεῖν δὲ ζῆν κάτω νομίζεται → who knows if life is death, and if in the underworld death is considered life
English (LSJ)
ὁ,
A illumination, light, Diocl(?).ap.Gal.19.530, Plu.2.929e, 931b, S.E.M.10.224: pl., Dam.Pr.23; σελήνης Vett.Val.28.7, Jul.Or.5.167d; [ἡμισφαιρίων] ib.4.147b. 2 metaph., light, Κύριος φ. μου LXXPs.26(27).1, cf. 2 Ep.Cor.4.4,6.
German (Pape)
[Seite 1323] ὁ, das Erleuchten, S. Emp. adv. phys. 2, 224. – Auch das Erleuchtende, das Licht, LXX.