spyderEtymologyFor the resemblance of the carriages' long, thin spokes to a spider's legs; the name was extended by analogy to open-topped automobiles.spyder means A lightweight, open-topped horse-drawn carriage. Lexicurio rates it Sui generis — a strength score of 89 out of 100.nounA lightweight, open-topped horse-drawn carriage.An open-topped sports car; a roadster.