τρίκροτος
From LSJ
καὶ παρὰ δύναμιν τολμηταὶ καὶ παρὰ γνώμην κινδυνευταὶ καὶ ἐν τοῖς δεινοῖς εὐέλπιδες → they are bold beyond their strength, venturesome beyond their better judgment, and sanguine in the face of dangers
English (LSJ)
ον,
A rowed with triple stroke, of a trireme, Aristid.Or.25(43).4; sc. ναῦς, Sch.Ael.Tact.p.234K.-R.: cf. δίκροτος, μονόκροτος.