intrusion
n.
late 14c., from Old French intrusion (14c.), from Medieval Latin intrusionem (nominative intrusio) "a thrusting in," noun of action from past participle stem of Latin intrudere, from in- "in" (see in-(2)) + trudere "to thrust, push" (see extrusion).
〔蒋〕[in-入,trus冲,闯,-ion名词后缀] 入侵,闯入