car-pool
UK[ˈkɑː puːl]US[ˈkɑːr puːl]
v
To travel together in a car, especially with each person taking turns driving their own car.
n
A group of people who travel together in a car, especially as an arrangement to save money or reduce traffic.
Morpheme Breakdown
car
pool
car
pool
Etymology
The compound 'car-pool' is a modern formation from the mid-20th century, directly combining the English words 'car' and 'pool'. 'Car' has a long lineage, tracing back via Latin 'carrus', a Gaulish word for a wagon, to the Proto-Indo-European root kers- (to run). 'Pool' originates from Old English 'pōl', a common Germanic term for a small body of still water. The metaphorical use of 'pool' to mean a common supply or shared resource, as in 'typing pool' or 'pool of ideas', developed in the 19th century. Thus, 'car-pool' logically applies this concept of a shared communal resource to the practical arrangement of sharing automobile journeys, reflecting a socio-economic response to traffic congestion and fuel costs.
Analysis
Structure: car + pool
car: Origin: Northern English dialect, from Middle English 'carre', ultimately from Latin 'carrus' (wheeled vehicle). Role: Noun base, specifying the mode of transport.
pool: Origin: English, from Old English 'pōl' (small body of water). Role: Noun base, used metaphorically to denote a shared resource or common fund.
Examples
To reduce emissions, the company encourages employees to car-pool.
She joined a car-pool with three other neighbors for the daily commute.
We decided to car-pool to the conference to split the cost of parking.