Definitions:

1. To become filled or spread with color or light. VERB
   • The sunrise suffused the sky with hues of pink and gold, casting a soft glow over the landscape.
2. To gradually spread or fill something with a particular quality or emotion, often giving it a warm or radiant appearance. VERB
   • A warm glow suffused her cheeks as she received the unexpected compliment.

Synonyms:

• cover
• fill
• inculcate
• inoculate
• mantle
• perfuse
• permeate
• saturate