The Collaborative International Dictionary of English v.0.48:

Queen \Queen\, v. i. [imp. & p. p. Queened; p. pr. & vb. n.
   Queening.] (Chess.)
   To make a queen (or other piece, at the player's discretion)
   of by moving it to the eighth row; as, to queen a pawn.
   [1913 Webster]