Abbott-Smith Manual Greek Lexicon
ὀρθός (G3717)
2 ὀρθός , -ή, -όν , [in LXX chiefly for יָשָׁר ;] straight ; in height, straight , upright : Ac 14:10 ; in line, straight , direct : fig., He 12:13 (LXX) .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain