subornation

noun

sub·​or·​na·​tion ˌsə-ˌbȯr-ˈnā-shən 

: an act or instance of suborning

subornation of perjured statements

to protect witnesses from intimidation and subornation

—WBZ-TV4 v. DA for the Suffolk Dist., 562 N.E.2d 817 (1990)

Note: Subornation of perjury is a crime.