extirpate
Concise Oxford English Dictionary © 2008 Oxford University Press:
extirpate /ˈɛkstəːpeɪt/
▶verb destroy completely; eradicate.
– derivatives
extirpation noun,
extirpator noun.
extirpation noun,
extirpator noun.
– origin ME: from L. exstirpare, from ex- ‘out’ + stirps ‘a stem’.
'extirpate' also found in these Oxford entries:

