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:

Rouge \Rouge\, n. [F.]
   1. (Chem.) A red amorphous powder consisting of ferric oxide.
      It is used in polishing glass, metal, or gems, and as a
      cosmetic, etc. Called also crocus, jeweler's rouge,
      etc.
      [1913 Webster]

   2. A cosmetic used for giving a red color to the cheeks or
      lips. The best is prepared from the dried flowers of the
      safflower, but it is often made from carmine. --Ure.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rouge \Rouge\, v. i. [imp. & p. p. Rouged; p. pr. & vb. n.
   Rouging .]
   To paint the face or cheeks with rouge.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Rouge \Rouge\, v. t.
   To tint with rouge; as, to rouge the face or the cheeks.
   [1913 Webster]

WordNet (r) 3.0 (2006):

rouge
    n 1: makeup consisting of a pink or red powder applied to the
         cheeks [syn: rouge, paint, blusher]
    v 1: redden by applying rouge to; "she rouged her cheeks"