sub tuum praesidium -- beneath Thy protection
Beneath Thy Protection (Ancient Greek: Ὑπὸ τὴν σὴν εὐσπλαγχνίαν; Latin: Sub Tuum Præsidium) is an ancient Christian hymn and prayer. It is one of the oldest known Marian prayers and among the most ancient preserved hymns to the Blessed Virgin Mary that is still in use. A papyrus containing it has been dated as early as the mid 3rd century by some scholars. The hymn is well attested among the believers of the Catholic Church, the Eastern Orthodox Church and Oriental Orthodoxy.
Sub tuum praesidium - Wikipedia