Dictionary entry

εὐθύτης

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

εὐθύτης, -ητος, ἡ

(< εὐθύς), [in LXX chiefly for יֹשֶׁר, מִישׁוֹר and cognate forms;]

uprightness: He 1:8^(LXX).†