- pre-empt (v.)
[pre-empt 词源字典]
- also preempt, 1830, "secure by pre-emtion," back-formation from pre-emption, originally American English. In the broascasting sense, it is attested from 1965, American English, a euphemism for "cancel." Related: pre-empted; preempted. [pre-empt etymology, pre-empt origin, 英语词源]