Joinder
Joinder , noun
[French joindre. See Join, transitive verb]
1.
The act of joining; a putting together; conjunction.
Confirmed by mutual joinder of your hands.
2.
(a) (Law) A joining of parties as plaintiffs or defendants in a suit.
(b)
(Law) Acceptance of an issue tendered in law or fact.
(c)
(Law) A joining of causes of action or defense in civil suits or criminal prosecutions.