IPA: /ˈkɒs.ɪt/
KK: /kɑsɪt/
To treat someone with excessive care and attention, often in a way that makes them overly dependent or spoiled.
She decided to cosset her new puppy with soft blankets and plenty of toys.
Past: cosseted
Past Participle: cosseted
Cosset comes from the Middle English 'cosset', which is derived from the Old French 'cocet', meaning a pet lamb or a young animal. The word originally referred to a pet or something that is pampered.
Think of a young animal ('cocet') that is treated with care and affection — that's why cosset means to pamper or treat someone with great care.