PS

*brḳ - to flash (EDA I 250)

Presumably, denominative from *baraḳ-/*barḳ- ‘lightning’

Hebrew
brḳ - to flash (HALOT 162)
Jewish Palestinian Aramaic
brḳ - to flash (DJPA 115)
Jewish Babylonian Aramaic
brḳ - to flash (DJBA 247)
Syriac
brḳ - to shine, to flash (LSyr. 98, SL 192)
Mandaic
brḳ - to flash, to shine, to lighten (MD 70)
Arabic
brq - to appear (lightning); to shine, to gleam, to glisten (Lane 189)
Minaean
brḳ - briller (to shine) (LM 23)
Geez
baraḳa - to flash, to scintillate, to shine, to sparkle (CDG 106)
Tigre
bärḳä - to flash (WTS 276)
Tigrinya
bäräḳä - to lighten; to shine, to gleam (TED 1117)
Amharic
bärräḳä - to lighten; to shine, to scintillate (AED 878)
Chaha
bərəḳḳ barä - to flash (lightning); to scintillate, to flare up (EDG 155)
Ezha
bərəḳḳ barä - to flash (lightning); to scintillate, to flare up (EDG 155)
Endegen
bərəḳḳ barä - to flash (lightning); to scintillate, to flare up (EDG 155)
Ennemor
bərəḳḳ barä - to flash (lightning); to scintillate, to flare up (EDG 155)
Gyeto
bərəḳḳ barä - to flash (lightning); to scintillate, to flare up (EDG 155)
Muher
bərəḳḳ barä - to flash (lightning); to scintillate, to flare up (EDG 155)
Masqan
bərəḳḳ barä - to flash (lightning); to scintillate, to flare up (EDG 155)
Masqan
biriḳ bāyä - to scintillate (EDG 155)
Mehri
bərḳáwt - to lighten, to flash (ML 53)
Jibbali
bɔrɔ́ḳɔ́t - to lighten, to flash (JL 28)
Soqotri
béraḳ - to be visible, to appear (Naumkin et al. 2014b:40, 56; LS 97)