Usage: 3 forms in 4 verses
Form Translated As     In Verse(s)
διαφαύση light shows through LXX.Judg.16.2
διέφαυσεν light shined through LXX.2Sam.2.32
διέφαυσε light shone through LXX.Gen.44.3
light shown through LXX.Judg.19.26

Liddell-Scott-Jones

διαφαύσκω (diaphauskō) to show light through G:V

διαφαύσκω,

Ionic dialect (and later Prose, [Refs 1st c.BC+] aorist -έφαυσα[LXX]:—show light through, dawn, ἅμ᾽ ἡμέρῃ διαφωσκούσῃ as soon as day began to dawn, [Refs 5th c.BC+]; ἄρτι διαφαύσκοντος (absolutely) [Refs 2nd c.BC+]

LSJ Scripture Refs: LXX.Gen.44.3