c.1200, "large, stately tent," from Old French paveillon "large tent; butterfly" (12c.), from Latin papilionem (nominative papilio) "butterfly, moth," in Medieval Latin "tent" (see papillon); the type of tent so called on resemblance to wings. Meaning "open building in a park, etc., used for shelter or entertainment" is attested from 1680s.
a tent or tabernacle (2 Sam. 22:12; 1 Kings 20:12-16), or enclosure (Ps. 18:11; 27:5). In Jer. 43:10 it probably denotes the canopy suspended over the judgement-seat of the king.
light temporary or semipermanent structure used in gardens and pleasure grounds. Although there are many variations, the basic type is a large, light, airy garden room with a high-peaked roof resembling a canopy. It was originally erected, like the modern canvas marquee, for special occasions such as fetes, garden banquets, and balls, but it became more permanent, and by the late 17th century the word was used for any garden building designed for use on special occasions.