tricycle
Meaning
a vehicle similar to a bicycle, but having three wheels, two at the back and one at the front.
Structure
Usage
the child learned to ride on a bright red tricycle.
he uses an adult tricycle for stability when running errands.
the antique tricycle was displayed in the transportation museum.
Etymology
The word 'tricycle' is a modern formation from classical roots. The prefix 'tri-', derived from Latin 'tres' and Greek 'treis', signifies the number three. It is combined with 'cycle', which originates from the Greek 'kyklos', meaning a circle, ring, or wheel. The term was constructed in the 19th century following the invention of the bicycle, applying a straightforward descriptive logic: a vehicle with three wheels. This pattern of using numerical prefixes with '-cycle' is consistent in English, as seen in 'bicycle' (two wheels) and 'unicycle' (one wheel).
Analysis
tri (from latin and greek, meaning 'three', a numerical prefix) + cycle (from greek 'kyklos', meaning 'circle' or 'wheel', a root denoting a circular object or motion)