κατάλαλος
From LSJ
αἰὲν ἀριστεύειν καὶ ὑπείροχον ἔμμεναι ἄλλων → always strive for excellence and prevail over others (Iliad 6.208, 11.784)
English (LSJ)
ὁ,
A slanderer, Ep. Rom.1.30, POxy.1828r.3.
German (Pape)
[Seite 1358] der Einem Böses nachredet, N. T.