primogeniture
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 > Greek (Woodhouse)
substantive
P. and V. τὸ πρεσβεύειν.
rights of primogeniture: P. and V. πρεσβεῖα, τά (sing. Dem. 1003).