Bible Encyclopedias
Primero

1911 Encyclopedia Britannica

(Span. first), a card game of Spanish origin, which Strutt calls "the oldest game of cards played in England." It is described as having a close resmblance to Ombre, by which it had been superseded. In both games the spadillo or ace of spades was the best card, but Primero was played with six cards and Ombre with nine. The exact method of play is uncertain.

Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Primero'. 1911 Encyclopedia Britanica. https://www.studylight.org/​encyclopedias/​eng/​bri/​p/primero.html. 1910.