ἀνθράκιον
From LSJ
αἰὲν ἀριστεύειν καὶ ὑπείροχον ἔμμεναι ἄλλων → always strive for excellence and prevail over others (Iliad 6.208, 11.784)
English (LSJ)
τό, Dim. of ἄνθραξ, a stone of which mirrors were made, Thphr.Lap.33. II Dim. of ἄνθραξ 11.1, IG11.161B82 (Delos, iii B.C.); of ἄνθραξ 11.2, Cass.Fel.22. III brazier, Alex.134.