glow

Concise Oxford English Dictionary © 2008 Oxford University Press:
glow/ɡləʊ/

▶verb

• 1 give out steady light without flame.

  ■ have an intense colour and a slight shine.

• 2 convey deep pleasure through one's expression and bearing.

  ■ (as adj. glowing) expressing great praise.

▶noun

• 1 a steady radiance of light or heat.

  ■ a feeling or appearance of warmth.

• 2 a strong feeling of pleasure or well-being: a glow of pride.

– derivatives
glowingly adverb.

– origin OE glōwan, of Gmc origin.