\Prop\, n.
A shell, used as a die. See {Props}.

\Prop\, v. t. [imp. & p. p. {Propped}; p. pr. & vb. n.
{Propping}.] [Akin to LG. & D. proppen to cram, stuff, thrust
into, stop, G. pfropfen, Dan. proppe, Sw. proppa; of
uncertain origin, cf. G. pfropfen to graft, fr. L. propago
set, layer of a plant, slip, shoot. Cf. 3d. {Prop},
{Propagate}.]
To support, or prevent from falling, by placing something
under or against; as, to prop up a fence or an old building;
(Fig.) to sustain; to maintain; as, to prop a declining
state. --Shak.

      Till the bright mountains prop the incumbent sky.
                                               --Pope.

      For being not propp'd by ancestry.       --Shak.

      I prop myself upon those few supports that are left me.
                                               --Pope.

\Prop\, n. [Akin to LG., D., & Dan. prop stopple, stopper,
cork, Sw. propp, G. pfropf. See {Prop}, v.]
That which sustains an incumbent weight; that on which
anything rests or leans for support; a support; a stay; as, a
prop for a building. ``Two props of virtue.'' --Shak.