sub·orn /sə-'bȯrn/ vt [Latin subornare, from sub- secretly + ornare to prepare, equip]
1: to induce or procure to commit an unlawful act and esp. perjury
an attempt to suborn a witness
2: to induce (perjury) or obtain (perjured testimony) from a witness
an attorney and his client were jointly charged with suborn ing perjury and perjury, respectively — W. R. LaFave and J. H. Israel
sub·orn·er n

Merriam-Webster’s Dictionary of Law. . 1996.

I verb bribe, bribe to take a false oath, buy off, corrupt, fraudulently induce, induce, induce another to commit perjury, induce by illegal gratuity, instigate, offer an inducement, procure another to commit perjury, procure indirectly, seduce, subornare, tamper with associated concepts: suborn perjury II index bait (lure), coax, convince, corrupt, inveigle, persuade, taint (corrupt)

Burton's Legal Thesaurus. . 2006

To persuade someone to commit perjury through bribery or other inducement.

The Essential Law Dictionary. — Sphinx Publishing, An imprint of Sourcebooks, Inc. . 2008.

v. To cause a person to do an illegal or immoral act, especially in a secretive or underhanded fashion; to cause a person to perjure his or herself; to get perjured testimony from someone.

Webster's New World Law Dictionary. . 2000.