Propulsion
来自Big Physics
early 17th century (in the sense ‘expulsion’): from medieval Latin propulsio(n-), from Latin propellere ‘drive before (oneself)’.
wiktionary
Borrowed from Medieval Latin propulsio, propulsionis, from the past participle of Latin propello(“to drive forward, drive forth, drive away, drive out”).
etymonline
propulsion (n.)
1610s, "expulsion, action of driving away" (a sense now obsolete), noun of action from propuls-, past-participle stem of Latin propellere "to propel" (see propel). The meaning "act of driving forward; propulsive force" is attested by 1799.
