\Bog\, n. [Ir. & Gael. bog soft, tender, moist: cf. Ir.
bogach bog, moor, marsh, Gael. bogan quagmire.]
1. A quagmire filled with decayed moss and other vegetable
   matter; wet spongy ground where a heavy body is apt to
   sink; a marsh; a morass.
         Appalled with thoughts of bog, or caverned pit, Of
         treacherous earth, subsiding where they tread. --R.
                                               Jago.
2. A little elevated spot or clump of earth, roots, and
   grass, in a marsh or swamp. [Local, U. S.]
{Bog bean}. See {Buck bean}.
{Bog bumper} (bump, to make a loud noise), {Bog blitter},
{Bog bluiter}, {Bog jumper}, the bittern. [Prov.]
{Bog butter}, a hydrocarbon of butterlike consistence found
   in the peat bogs of Ireland.
{Bog earth} (Min.), a soil composed for the most part of
   silex and partially decomposed vegetable fiber. --P. Cyc.
{Bog moss}. (Bot.) Same as {Sphagnum}.
{Bog myrtle} (Bot.), the sweet gale.
{Bog ore}. (Min.)
   (a) An ore of iron found in boggy or swampy land; a
       variety of brown iron ore, or limonite.
   (b) Bog manganese, the hydrated peroxide of manganese.
{Bog rush} (Bot.), any rush growing in bogs; saw grass.
{Bog spavin}. See under {Spavin}.

\Bog\, v. t. [imp. & p. p. {Bogged}; p. pr. & vb. n.
{Bogging}.]
To sink, as into a bog; to submerge in a bog; to cause to
sink and stick, as in mud and mire.
      At another time, he was bogged up to the middle in the
      slough of Lochend.                       --Sir W.
                                               Scott.