δεκαπρωτεία
From LSJ
ἄνδρες τεθνᾶσιν ἐκ χερῶν αὐτοκτόνων → the men are dead, murdered by their very own hands | dead are our chiefs by fratricidal hands | by kindred hands and mutual murder slain | their hands have killed each other
English (LSJ)
ἡ,
A office of δεκάπρωτοι, IGRom. 3.802 (Syllaeum), POxy.1204.4 (iii A.D.), etc.