ἀμεριμνία
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)
ἡ,
A freedom from care, Plu.2.83oa, Secund.Sent.8b; ἀ. τῆς δεσποτείας Hdn.2.4.6. 2 as law-term, guarantee, release, IG14.956; τινός PLips.59; receipt, Just.Nov.128. II personified, Σεβαστῶν Ἀ., = Securitas Augustorum, CIG2778 (Aphrodisias).