Dictionary entry

διασαφέω

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

δια-σαφέω, -ῶ

(< σαφής, clear), [in LXX: De 1:5 (בּאר pi.), Da LXX, 2:6 (חוה aph.), I-III Ma 9 *;]

to make clear, explain fully: c. acc. rei, dat. pers., Mt 13:2618:31.†