eradication
n.
early 15c., from Latin eradicationem (nominative eradicatio), noun of action from past participle stem of eradicare "root out, extirpate, annihilate," from assimilated form of ex- "out" (see ex-) + radix (genitive radicis) "root" (see radish).
〔蒋〕[radic根，-ation名词后缀] 根除，斩根，消灭