Definitions

1. verb

to treat or manage something with great care; to indulge or pamper someone or something

“She cosseted the delicate flower in her greenhouse, making sure it received the perfect amount of sunlight.”

2. noun

a soft, warm bed or nest of feathers, wool, etc., for a bird to sit on, often for laying eggs

“The hen had made a cozy cosset in the corner of the barn to lay her eggs.”