9 letters · 12 points in Scrabble
verb kill in large numbers
verb destroy completely, as if down to the roots
originPIE word *wréh₂ds From Middle English eradicaten (“to eradicate”), from eradicat(e) (“eradicated”, past participle of eradicaten) + -en (verb-forming suffix), borrowed from Latin ērādīcātus, the perfect passive participle of ērādīcō (“to uproot, root out; to anihilate, eradicate”), from ē- (“out”) + rādīx (“root”) + -ō (verb-forming suffix). See also radish.
Etymology from Wiktionary, CC BY-SA 3.0