h₂erǵ-mn̥-

“bright thing, shining object”

Debatedcolorlight

argument, argyle

Nominal of *h₂erǵ- giving Latin argumentum, English argument (originally a bright/clear proof).

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”