See eradicate in Webster's New World Roget's A-Z Thesaurus II
verb
To destroy all traces of:
abolish, annihilate, blot out, clear, erase, exterminate, extinguish, extirpate, kill1, liquidate, obliterate, remove, root1 (out or up), rub out, snuff out, stamp out, uproot, wipe out. Idioms: do away with, make an end of, put an end to. See help, makeTo get rid of, especially by banishment or execution:
eliminate, liquidate, purge, remove, wipe out. Idioms: do away with, put an end to. See help, keep
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