The Collaborative International Dictionary of English v.0.48:

Rouge \Rouge\, a. [F., fr. L. rubeus red, akin to rubere to be
   red, ruber red. See Red.]
   red. [R.]
   [1913 Webster]

   Rouge et noir[F., red and black], a game at cards in which
      persons play against the owner of the bank; -- so called
      because the table around which the players sit has certain
      compartments colored red and black, upon which the stakes
      are deposited. --Hoyle.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Trente et quarante \Trente" et` qua`rante"\ [F., lit., thirty
   and forty.]
   Same as Rouge et noir, under Rouge.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

rouge et noir
    n 1: a card game in which two rows of cards are dealt and
         players can bet on the color of the cards or on which row
         will have a count nearer some number [syn: rouge et noir,
         trente-et-quarante]