root out of

root (someone or something) out of (something or some place)

To seek out, locate, and remove or eliminate someone or something from some place or thing. The exterminator wants to fumigate the entire house to root the termites out of there for good. The new police commissioner has vowed to root drug dealers out of the city by any means necessary.
See also: of, out, root
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

root someone or something out of something

 and root someone or something out
to seek and remove someone or something from something or some place; to seek to discover or bring something to light. The committee wanted to root all the lazy people out of the club. The manager rooted out all the deadwood.
See also: of, out, root
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
See also: