τριττύαρχος
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)
ὁ,
A chief of a τριττύς 111, IG22.641.31 (iii B. C.), Poll.8.109; = tribunus, D.H.2.7; of an officer in the army, Lib.Or.25.58; τριττυάρχης, EM768.13.