συστρατεύειν
From LSJ
Οἱ βασιλεῖς τῇ ἐγκυκλοπαιδείᾳ, αὐτὴ τοῖς βασιλεῦσι (Salamanca inscription) → The kings for the university, and the university for the kings
Greek > English (Woodhouse Verbs Reversed)
(see also συστρατεύω): join in a campaign, join in an expedition, on an expedition