noun
uprooting; pulling out by the roots
Refers to the act of pulling a plant or tree out of the ground with its roots intact. Can also be used figuratively for thorough removal or eradication.
雑草を根こぎにする。
Pull weeds out by the roots.
その政策は汚職の根こぎを目指している。
The policy aims at the uprooting of corruption.
根絶 means 'eradication' or 'extermination' and is more formal and abstract, often used for diseases or social problems, while 根こぎ is more concrete and physical.
Compound of 根 (ne, 'root') and こぎ (kogi, the continuative form of こぐ, 'to pull out'). The kanji 扱 is used for its meaning 'to handle' or 'to pull out', but the kana spelling is more common.