- impulsion (n.)
[impulsion 词源字典]
- early 15c., "driving, pushing, thrusting," from Old French impulsion (early 14c.), from Latin impulsionem (nominative impulsio) "external pressure," figuratively "incitement, instigation," noun of action from past participle stem of impellere (see impel).[impulsion etymology, impulsion origin, 英语词源]