Incandescent

Etymology

From Latin "incandescere" ("to glow white-hot"): "in-" (an intensive) plus "candescere" ("to become white or begin to glow"), from "candere" ("to shine, be white"). That root also lies behind "candle" and "candid." The word names the bright glow given off by something intensely hot.

adjective · /in-kan-DES-unt/
Glowing with intense heat; radiantly bright.
What it names
The white-hot brilliance of something glowing from its own heat — a filament, live embers, or, figuratively, blazing passion.
Example
The blacksmith drew the incandescent iron from the forge.
Related idea
Luminous things glow softly; incandescent things glow because they are burning hot, with a fiercer, whiter light.