irradicable (adj.)

"that cannot be rooted out," 1728, from assimilated form of in- (1) "not, opposite of" + radicable, from Latin radix "root" (from PIE root *wrād- "branch, root"). Latin radicare meant "to take root," and English irradicate (v.) means both "root out" (1709) and "to root, fix by the root" (1660s).