Posset \Pos"set\, n. [W. posel curdled milk, posset.]

A beverage composed of hot milk curdled by some strong infusion, as by wine, etc., -- much in favor formerly. ``I have drugged their posset.'' --Shak.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Posset \Pos"set\, v. t. [imp. & p. p. Posseted; p. pr. & vb. n. Posseting.]

1. To curdle; to turn, as milk; to coagulate; as, to posset the blood. [Obs.]

--Shak.

2. To treat with possets; to pamper. [R.]

``She was cosseted and posseted.'' --O. W. Holmes.

Source: Webster's Revised Unabridged Dictionary (1913)