Source : Webster's Revised Unabridged Dictionary (1913)

Canopy \Can"o*py\ (k[a^]n"[-o]*p[y^]), n.; pl. {Canopies}
   (-p[i^]z). [OE. canapie, F. canap['e] sofa, OF. conop['e]e,
   conopeu, conopieu, canopy, vail, pavilion (cf. It. canop[`e]
   canopy, sofa), LL. conopeum a bed with mosquito curtains, fr.
   Gr. kwnwpei^on, fr. kw`nwps gnat, kw`nos cone + 'w`ps face.
   See {Cone}, and {Optic}.]
   1. A covering fixed over a bed, dais, or the like, or carried
      on poles over an exalted personage or a sacred object,
      etc. chiefly as a mark of honor. ``Golden canopies and
      beds of state.'' --Dryden.

   2. (Arch.)
      (a) An ornamental projection, over a door, window, niche,
          etc.
      (b) Also, a rooflike covering, supported on pillars over
          an altar, a statue, a fountain, etc.

Canopy \Can"o*py\, v. t. [imp. & p. p. {Canopes}; p. pr. & vb.
   n. {Canopying}.]
   To cover with, or as with, a canopy. ``A bank with ivy
   canopied.'' --Milton.

Source : WordNet®

canopy
     n 1: the transparent covering of an aircraft cockpit
     2: the umbrella-like part of a parachute that fills with air
     3: a covering (usually of cloth) that serves as a roof to
        shelter an area from the weather
     v : cover with a canopy
     [also: {canopied}]