annihilation
n.
1630s, from Middle French annihilation (restored from Old French anichilacion, 14c.), or directly from Late Latin annihilationem (nominative annihilatio), noun of action from past participle stem of annihilare (see annihilate).
〔蒋〕[nihil无,-ation名词后缀] 消灭,歼灭