Definition of posseted:
(n) :
A beverage composed of hot milk curdled by some strong infusion, such as wine.
(n) :
A pudding-like food composed of cream, sugar, and other flavoring, such as lemon.
(n) :
A baby's vomit, comprising curdled milk.
(v) :
To treat with possets; to pamper.
(v) :
(of a baby) To vomit up curdled milk.
(v) :
(obsolete) To curdle; to turn, as milk; to coagulate.