Consecration and entrustment to Mary
The consecration and entrustment to the Virgin Mary is a personal or collective act of Marian devotion among Catholics, with the Latin terms oblatio, servitus, commendatio and dedicatio being used in this context. Consecration is an act by which a person is dedicated to a sacred service, or an act which separates an object, location or region from a common and profane mode to one for sacred use.
Source: Wikipedia — Consecration and entrustment to Mary (CC BY-SA 4.0)