hide and seek

from The Collaborative International Dictionary of English v.0.48

Hide \Hide\, v. i.
   To lie concealed; to keep one's self out of view; to be
   withdrawn from sight or observation.
   [1913 Webster]

         Bred to disguise, in public 'tis you hide. --Pope.
   [1913 Webster]

   {Hide and seek}, a play of children, in which some hide
      themselves, and others seek them. --Swift.
      [1913 Webster]