βαρβαροκτόνος
From LSJ
ἀλλὰ διὰ τῆς ἀγάπης δουλεύετε ἀλλήλοις. ὁ γὰρ πᾶς νόμος ἐν ἑνὶ λόγῳ πεπλήρωται, ἐν τῷ Ἀγαπήσεις τὸν πλησίον σου ὡς σεαυτόν → but be enslaved to each other through love; for the whole Torah is fulfilled in one statement: You will love your neighbor as yourself (Galatians 5:13f.)
English (LSJ)
ον,
A slaughtering barbarians, Thom.Mag.p.141 R.
Greek (Liddell-Scott)
βαρβᾰροκτόνος: -ον, ὁ ἀποκτείνων βαρβάρους, Θωμ. Μ. σ. 141.