unprovoked
From LSJ
Μισῶ σοφιστήν, ὅστις οὐχ αὑτῷ σοφός → I hate the sage who is not wise for himself → Odi professum sapere, qui sibi non sapit → Den Weisen hass' ich, der in eigner Sache Tor
English > Greek (Woodhouse)
adjective
voluntary: P. and V. ἑκούσιος.
do a thing unprovoked: P. and V. ἄρχειν τινός, or πρότερός τι ποιεῖν.
they attacked us unprovoked: P. ἐπέθεντο ἡμῖν οὐκ ἀδικούμενοι (Thuc. 3, 39).