根除

Eradicate \E*rad"i*cate\, v. t. [imp. & p. p. {Eradicated}; p.
pr. & vb. n. {Eradicating}.] [L. eradicatus, p. p. of
eradicare to eradicate; e out + radix, radicis, root. See
{Radical}.]
1. To pluck up by the roots; to root up; as, an oak tree
eradicated.

2. To root out; to destroy utterly; to extirpate; as, to
eradicate diseases, or errors.

This, although now an old an inveterate evil, might
be eradicated by vigorous treatment. --Southey.

Syn: To extirpate; root out; exterminate; destroy;
annihilate.