Lexical Definition

‎ἐπιφαύω‎ epiphaúō (ep-ee-fow'-o) to shine on ^G:V
a form of ‎ἐπιφαίνω‎

give light.

• to illuminate (figuratively)

Abbott-Smith

† ἐπι-φαύσκω (variant form of ἐπιφώσκω, q.v.), [in LXX: Jb 25:5 (אהל hi.) 31:26 41:9(10)* (הָלַל hi.) * ;]
to shine forth: fig., c. dat., Eph 5:14 (on v.l. -ψαύσει, v. ICC, Westc., AR, in l.).†

Abbott-Smith References

Liddell-Scott-Jones

ἐπιφαύσκω,

future -φαύσω (see. below):— shine out, of the sun or moon, [LXX]: also in passive form,[Refs]; ἐπιφαύσει σοι ὁ Χριστός will shine out for thee,[NT]

_{LSJ Scripture Refs: LXX.Job.25.5 ☩ Eph.5.14}