alight (v.) Look up alight at Dictionary.com
"to descend, dismount," O.E. alihtan, from a- "down, aside" (see a- (1)) + lihtan "get off, make light" (see light (v.)).
alight (adj.) Look up alight at Dictionary.com
"on fire," early 15c., apparently from M.E. aliht, pp. of alihton (O.E. on-lihtan) "to light up," also "to shine upon" (see light (n.)).