The Collaborative International Dictionary of English v.0.48:

Knee \Knee\ (n[=e]), n. [OE. kne, cneo, As. cne['o], cne['o]w;
   akin to OS. knio, kneo, OFries. kn[imac], G. & D. knie, OHG.
   chniu, chneo, Icel. kn[=e], Sw. kn[aum], Dan. kn[ae], Goth.
   kniu, L. genu, Gr. go`ny, Skr. j[=a]nu, [root]231. Cf.
   Genuflection.]
   1. In man, the joint in the middle part of the leg.
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   2. (Anat.)
      (a) The joint, or region of the joint, between the thigh
          and leg.
      (b) In the horse and allied animals, the carpal joint,
          corresponding to the wrist in man.
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   3. (Mech. & Shipbuilding) A piece of timber or metal formed
      with an angle somewhat in the shape of the human knee when
      bent.
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   4. A bending of the knee, as in respect or courtesy.
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            Give them title, knee, and approbation. --Shak.
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   Knee breeches. See under Breeches.

   Knee holly, Knee holm (Bot.), butcher's broom.

   Knee joint. See in the Vocabulary.

   Knee timber, timber with knees or angles in it.

   Knee tribute, or Knee worship, tribute paid by kneeling;
      worship by genuflection. [Obs.] "Knee tribute yet unpaid."
      --Milton.
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The Collaborative International Dictionary of English v.0.48:

Broom \Broom\ (br[=oo]m), n. [OE. brom, brome, AS. br[=o]m; akin
   to LG. bram, D. brem, OHG. br[=a]mo broom, thorn?bush, G.
   brombeere blackberry. Cf. Bramble, n.]
   1. (Bot.) A plant having twigs suitable for making brooms to
      sweep with when bound together; esp., the Cytisus
      scoparius of Western Europe, which is a low shrub with
      long, straight, green, angular branches, minute leaves,
      and large yellow flowers.
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            No gypsy cowered o'er fires of furze and broom.
                                                  --Wordsworth.
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   2. An implement for sweeping floors, etc., commonly made of
      the panicles or tops of broom corn, bound together or
      attached to a long wooden handle; -- so called because
      originally made of the twigs of the broom.
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   Butcher's broom, a plant (Ruscus aculeatus) of the Smilax
      family, used by butchers for brooms to sweep their blocks;
      -- called also knee holly. See Cladophyll.

   Dyer's broom, a species of mignonette (Reseda luteola),
      used for dyeing yellow; dyer's weed; dyer's rocket.

   Spanish broom. See under Spanish.
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