σύνοπλος
From LSJ
τί δὲ βλέπεις τὸ κάρφος τὸ ἐν τῷ ὀφθαλμῷ τοῦ ἀδελφοῦ σου, τὴν δὲ ἐν τῷ σῷ ὀφθαλμῷ δοκὸν οὐ κατανοεῖς → why do you look at the speck of sawdust in your brother's eye and pay no attention to the plank in your own eye | and why beholdest thou the mote that is in thy brother's eye, but considerest not the beam that is in thine own eye | why do you see the speck that is in your brother's eye, but don't consider the beam that is in your own eye
English (LSJ)
ον,
A under arms together, allied, δόρατα E.HF127 (lyr.).
German (Pape)
[Seite 1031] mit unter den Waffen, Waffengefährte; ξύνοπλα δόρατα Eur. Herc. F. 128.
Greek (Liddell-Scott)
σύνοπλος: -ον, ὁ συμπολεμῶν τινι, σύμμαχος, σύνοπλα δόρατα Εὐρ. Ἡρ. Μαιν. 128.