Source : Webster's Revised Unabridged Dictionary (1913)

Off \Off\, prep.
   Not on; away from; as, to be off one's legs or off the bed;
   two miles off the shore. --Addison.

   {Off hand}. See {Offhand}.

   {Off side}
   (Football), out of play; -- said when a player has got in
              front of the ball in a scrimmage, or when the ball
              has been last touched by one of his own side
              behind him.

   {To be off color}, to be of a wrong color.

Off \Off\, a.
   1. On the farther side; most distant; on the side of an
      animal or a team farthest from the driver when he is on
      foot; in the United States, the right side; as, the off
      horse or ox in a team, in distinction from the {nigh} or
      {near} horse or ox; the off leg.

   2. Designating a time when one is not strictly attentive to
      business or affairs, or is absent from his post, and,
      hence, a time when affairs are not urgent; as, he took an
      off day for fishing: an off year in politics. ``In the off
      season.'' --Thackeray.

   {Off side}.
      (a) The right hand side in driving; the farther side. See
          {Gee}.
      (b) (Cricket) See {Off}, n.