Cosset \KOSS-it\ , transitive verb;
1. To treat as a pet; to treat with excessive indulgence; to pamper
1. A pet, especially a pet lamb
The noun form of this word dates to the 1570's and possibly comes from Old English cot-sæta ("one who dwells in a cot"). Using cosset to refer to person dates to the 1590's and the verb form is first attested around 1650.
Today's word and the first definition were both taken from Dictionary.com's 'Word of the Day' for Monday, February 28
Etymologies come from the Oxford English Dictionary and/or Etymonline.com