קָשַׁר

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

Source

English (Strong)

a primitive root: to tie, physically (gird, confine, compact) or mentally (in love, league): bind (up), (make a) conspire(-acy, -ator), join together, knit, stronger, work (treason).