ἐναθλέω
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)
A = ἀθλέω ἐν, τοῖς πολέμοις, ταῖς τοξείαις, D.S.1.54, 3.8; ἐν γυμνασίοις καὶ πόνοις Id.16.44; μαθήμασι Luc.Am.45; [ὑπολήψεσι] Arr.Epict.3.16.13:—Med., ἐνηθλήσω προνοίᾳ AP7.117 (<Zenod.>). 2 bear up bravely under, ταῖς βασάνοις Ael.VH2.4; πρὸς τοὺς πόνους Iamb.Protr.20.