ὄρθιος ὄρθιος, α, ον ὀρθός straight up, going upwards, steep, uphill, Hes., Eur.; ὄρθιον ἑτέραν (sc. ὁδὸν ἐπορεύοντο Thuc.; so, ὄρθιον or πρὸς ὄρθιον ἰέναι to march up-hill, Xen.; πρὸς ὄρθιον ἄγειν to lead by a steep path, Xen.:— τὰ ὄρθια the country from the coast upwards, Hdt. upright, standing, Hdt., Eur.:— esp. of hair, Trag.: of animals, rampant, Pind. of the voice, high-pitched, loud, shrill, Trag.; neut. as adv., ὄρθια ἤϋσε she cried aloud, Il.; ὄρθιον φωνεῖν Pind. νόμος ὄρθιος the orthian strain, a favourite air at Athens, Hdt., Ar.; ὄρθιος alone, Ar. in military language, ὄρθιοι λόχοι were companies formed in column, opp. to a line of battle, Xen. generally, like ὀρθός, straight, Xen.; ἤθη ὄρθια straightforwardness, Plut.