Comus was a masque performed before the President of Wales, the Earl of Bridgewater, at Ludlow, Shropshire (near the border between England and Wales) in 1634, to music by Henry Lawes.
Star : Hesperus (Venus), the evening star.
Gilded car : in Roman mythology, the sun god was seen as driving a chariot across the sky each day.
Allay : temper or cool.
Slope sun...: elaborate metaphors for the movement of the sun.
Northern : later changed to ‘dusky’, which fits oddly with ‘pole’.
Welcome : is here a verb (not an adjective).
Dropping odors, dropping wine : evokes ideas of intoxication with fragrances and drink.
Grave saws : serious maxims, not implements to cut up graves.
Swift round : fast succession.
Sounds : passages of water connecting two seas.
Finny drove : fish.
Morris : as in morris dance, an elaborate dance with pipes, handkerchiefs, bells and clapping, usually performed on village greens by men in hobnailed boots.
Cotytto was a Thracian divinity who was celebrated in licentious nocturnal rites.
Stygian : according to Roman mythology, the river Styx ran through the underworld.
Ebon chair : ebony (black) carriage.
Hecat’ : Hecate, goddess of the underworld.
Indian steep : the Himalayas.