πληγέντες αὐτόχειρι σὺν μιάσματι → brothers smitten by mutual slaughter
subs.
Favour: P. and V. χάρις, ἡ, V. προσφορά, ἡ (Soph., O.C. 581).
Grant a boon: P. and V. χαρίζεσθαι, χάριν διδόναι, V. χάριν θέσθαι.
Advantage: P. and V. ὠφέλεια, ἡ, ὄφελος, τό; see advantage.