h₃regʷ-

“to cover with darkness”

Debatedlight

Erebus, dark

Root of Greek Erebos "darkness", related to covering and concealing.

H₂eydʰ-“to burn, to kindle a fire”bʰeh₂-w-“to shine forth, to appear”bʰerǵ-eyo-“to keep brightening, shining”bʰewk-“to shine, gleam”bʰleg-“to shine, burn, flash”bʰleg-eyo-“to keep burning, blazing”bʰleg-mn̥-₂“blaze, shining fire”bʰleh₁-g-“to set on fire, to blaze”