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.