Eradicates starting from the bottom (7)

I believe the answer is:

uproots

(Other definitions for uproots that I've seen before include "Pulls (a plant) out of the ground" , "tears out of bed" , "Tears from natural habitat or ground" , "Displaces -- or put so (anag)" , "Completely destroys" .)

I've seen this clue in The New York Times.

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