to set straight:
I.in height, to set upright, set up one fallen or lying down, raise up, Il.; ὀρθοῦν κάρα, πρόσωπον Eur.:—of buildings, to raise up, rebuild, or, generally, to erect, build up, Eur., Thuc.:—Pass. to be set upright, Il., etc.: simply to rise from one's seat, stand up, Aesch., Soph.
III.metaph. (from signf. I) to raise up, restore to health, safety, happiness, Hdt., Aesch., etc.:—also to exalt, honour, Pind.
2.(from signf. II) to guide aright, Aesch.; ὀρθ. ἀγῶνας to bring to a happy end, id=Aesch.; ὀ. βίον Soph.:—Pass. to succeed, prosper, Hdt., Soph., etc.; τὸ ὀρθούμενον success, Thuc.:—of words and opinions, to be right, true, Hdt., Eur.; ἐν ἀγγέλωι κρυπτὸς ὀρθοῦται λόγος a secret message is rightly sent by messenger, not by letter, Aesch.
3.in Pass. also, to be upright, deal justly, id=Aesch.