Source : Webster's Revised Unabridged Dictionary (1913)

Eat \Eat\, v. i.
   1. To take food; to feed; especially, to take solid, in
      distinction from liquid, food; to board.

            He did eat continually at the king's table. --2 Sam.
                                                  ix. 13.

   2. To taste or relish; as, it eats like tender beef.

   3. To make one's way slowly.

   {To eat}, {To eat in} or {into}, to make way by corrosion; to
      gnaw; to consume. ``A sword laid by, which eats into
      itself.'' --Byron.

   {To eat to windward} (Naut.), to keep the course when
      closehauled with but little steering; -- said of a vessel.