avenger
From LSJ
οἰκτίστῳ θανάτῳ εἵμαρτο ἁλῶναι → it was fated that you would be taken by the most miserable death, it has been decreed that thou shouldst be cut off by a most piteous death
English > Greek (Woodhouse)
substantive
P. and V. τιμωρός, ὁ or ἡ, V. ποινάτωρ, ὁ, τιμάορος, ὁ or ἡ, δικηφόρος, ὁ or ἡ, πράκτωρ, ὁ.
avenger of a father's death: V. πατρὶ τιμωρὸς φόνου (Soph., Electra 14).
I will become the avenger of my children's blood: V. τέκνοις δικαστὴς αἵματος γενήσομαι (Eur., Hercules Furens 1150).