What does "canopy" mean?

Canopy: (Arch.) (a) An ornamental projection, over a door, window, niche, etc. (b) Also, a roofike covering, supported on pilars over an altar, a statue, a fountain, etc.

Additional senses

  1. 2.To cover with, or as with, a canopy. "A bank with ivy canopied." Milton.

Sources