To dig or pull up by the roots; to deracinate.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "root up" in a sentence
"The darnel before it comes into ear is very similar in appearance to wheat; hence the command that the zizania should be left to the harvest, lest while men plucked up the tares "they should root up also the wheat with them.""