: to set or ground on something
: find a basis for usually used with on [if Mary's claim is predicated simply on John's duty of support "W. M. McGovern, Jr. et al. "]
[pre-di-kət] adj : relating to or being any of a series of criminal acts upon which prosecution for racketeering may be predicated [a act] [a crime]
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.