- car-pool (n.)
[car-pool 词源字典]
- also carpool, 1942, American English, from car + pool (n.2). As a verb from 1962. Related: Carpooled; carpooling.[car-pool etymology, car-pool origin, 英语词源]
- pool (v.1)
- "to make a common interest, put things into a pool," 1871, from pool (n.2). Related: Pooled; pooling.
- spool (v.)
- c. 1600, from spool (n.). Related: Spooled; spooling; spooler (1550s).