A light, open carriage or cart with two wheels, historically used for personal transport in the 18th and 19th centuries.
Possibly derived from the name of its inventor or designer; first recorded in the 18th century. The origin is uncertain but may relate to 'dene' (a valley) or be a proper name that became genericized.
A dennet was the sports car of the 1700s—light, fast, and meant for one or two people—unlike the heavy family carriages, making it the hot rod of aristocratic society!
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