英语词源字典 - 在线词源网站

ineradicable (adj.)[ineradicable 词源字典]: 1794, from in- (1) "not, opposite of" + eradicable (see eradicate). Related: Ineradicably.[ineradicable etymology, ineradicable origin, 英语词源]
irradicable (adj.): 1728, from ir- "not" + radicable.