Posset is an old-fashioned drink, mostly found in historical contexts or literature.

Historical Drink

It's rarely used in modern English, so it might be unfamiliar to contemporary listeners.

Rarely Used

Historically, posset was thought to have medicinal qualities and was given to the sick.

Posset refers to vomit from a baby, which is normal and often linked to burping.

This type of posset usually happens after a baby is fed and is being burped.

A posset from a baby is usually not a sign of sickness or discomfort.