E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A game at cards.
I left him at primero with the Duke of Suffolk.Shakespeare: Henry VIII., i. 2.
Four cards were dealt to each player, the principal groups being flush, prime, and point Flush was the same as in poker, prime was one card of each suit, and point was reckoned as in piquet.Cyclopdia of Games, p. 270.