The Collaborative International Dictionary of English v.0.48:
Cabriolet \Cab`ri*o*let"\, n. [F., dim. of cabriole a leap, caper, from It. capriola, fr. dim. of L. caper he-goat, capra she-goat. This carriage is so called from its skipping lightness. Cf. Cab, Caper a leap.] A one-horse carriage with two seats and a calash top. [1913 Webster]WordNet (r) 3.0 (2006):
cabriolet n 1: small two-wheeled horse-drawn carriage; with two seats and a folding hood [syn: cab, cabriolet]