νευρά
From LSJ
ἀεί ποτ' εὖ μὲν ἀσκός εὖ δὲ θύλακος ἅνθρωπός ἐστι → this guy's always good at being a wineskin, and at times a winesack
English (LSJ)
Ion. νευρή, ἡ, Ep. gen. sg. νευρῆφι( ν) Il.8.309, 15.313, 21.113:—
A string or cord of sinew, in Ep. usu. bowstring, ν. ἐϋστρεφής, νεόστροφος, Il.15.463,469; βαρύφθογγος Pi.I.6(5).34, cf. S.Ph.1005, E.Ba.784, X.An.4.2.28, etc.: made from νεῦρον, Arist.HA540a19; μύες ἐβοήθησαν διατραγόντες τὰς ν. Id.Rh.1401b16. 2 harpstring, Poll.4.62. 3 strand of a torsion-engine, IG22.554.15. 4 withe, LXX Jd.16.7. 5 wrongly taken by some, = νεῦρον, Il.8.328. (Cogn. with νεῦρον.)