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[flaming-tyger.livejournal.com]

extirpate-verb [ek-ster-peyt, ik-stur-peyt]
1. to remove or destroy totally; do away with; exterminate.
2. to pull up by or as if by the roots; root up

http://dictionary.reference.com/browse/extirpate

My English teacher extirpated every single original thought in my paper, saying it was weak and ineffectual.