ἐπικορύσσομαι
From LSJ
τοῦ δὲ πολέμου οἱ καιροὶ οὐ μενετοί → in war, opportunities won't wait | the chances of war will not wait (Thucydides 1.142.2)
English (LSJ)
A arm oneself against, τινί Luc.Alex.57.
German (Pape)
[Seite 952] sich wogegen rüsten, τινί, Luc. Alex. 57.