a. [ L. invitatorius: cf. F. invitatoire. ] Using or containing invitations. [ 1913 Webster ]

The “Venite” [ Psalm xcv. ], which is also called the invitatory psalm. Hook. [ 1913 Webster ]

n.; pl. Invitatories [ LL. invitatorium: cf. F. invitatoire. ] That which invites; specifically, the invitatory psalm, or a part of it used in worship. [ 1913 Webster ]