Dictionary entry

ὀρθός

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

ὀρθός, -ή, -όν,

[in LXX chiefly for יָשָׁר;]

straight;

(a) in height, straight, upright: Ac 14:10;

(b) in line, straight, direct: fig., He 12:13^(LXX).†