σταθερότης
From LSJ
μή, φίλα ψυχά, βίον ἀθάνατον σπεῦδε, τὰν δ' ἔμπρακτον ἄντλει μαχανάν → Oh! my soul do not aspire to eternal life, but exhaust the limits of the possible. | Do not yearn, O my soul, for immortal life! Use to the utmost the skill that is yours. | Do not, my soul, strive for the life of the immortals, but exhaust the practical means at your disposal.
English (LSJ)
ητος, ἡ, A steadiness, firmness, ib.515; cf. σταθηρότης.
German (Pape)
[Seite 927] ητος, ἡ, Stätigkeit, Beständigkeit, Gloss.
Greek (Liddell-Scott)
στᾰθερότης: -ητος, ἡ, εὐστάθεια, ἀκινησία, Εὐστράτ. εἰς Ἀριστ. Ἠθικ. Νικ. 1, Θεόδ. Πρόδρ.