\Prone\, a. [L. pronus, akin to Gr. ?, ?, Skr. pravana
sloping, inclined, and also to L. pro forward, for. See
{Pro-}.]
1. Bending forward; inclined; not erect.
         Towards him they bend With awful reverence prone.
                                               --Milton.
2. Prostrate; flat; esp., lying with the face down; --
   opposed to {supine}.
         Which, as the wind, Blew where it listed, laying all
         things prone.                         --Byron.
3. Headlong; running downward or headlong. ``Down thither
   prone in flight.'' --Milton.
4. Sloping, with reference to a line or surface; declivous;
   inclined; not level.
         Since the floods demand, For their descent, a prone
         and sinking land.                     --Blackmore.
5. Inclined; propense; disposed; -- applied to the mind or
   affections, usually in an ill sense. Followed by to.
   ``Prone to mischief.'' --Shak.
         Poets are nearly all prone to melancholy. --Landor.