implead vt[Anglo-French empleder , from Old French emplaidier , from en- thoroughly + plaidier to plead]
: to bring into a lawsuit
: to bring (a third party who is or may be liable to the plaintiff or defendant) into a suit compare interplead , intervene , join
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.