διατείνεσθαι
From LSJ
οὐ δικαίως θάνατον ἔχθουσιν βροτοί, ὅσπερ μέγιστον ῥῦμα τῶν πολλῶν κακῶν → unjustly men hate death, which is the greatest defence against their many ills | men are not right in hating death, which is the greatest succour from our many ills
Greek > English (Woodhouse Verbs Reversed)
(see also διατείνω): assert, exert oneself, make an effort, strain oneself make an effort