darder

Darder is a literary verb meaning to shoot forth or pierce like a dart — most often for the sun's rays (le soleil darde ses rayons) or a sharp, intense look (darder un regard noir sur quelqu'un). It belongs to elevated, descriptive writing rather than everyday speech.

• Le soleil dardait ses rayons sur la plage. — The sun beat its rays down on the beach.
• Elle lui darda un regard glacial. — She shot him an icy look.
• La lumière dardait à travers les volets. — The light streamed sharply through the shutters.

Darder is a literary word for a sharp, ray-like intensity — using it for ordinary sunlight or an ordinary glance in casual conversation sounds overwrought; briller and regarder are the everyday equivalents.