Angelus
noun
An·ge·lus ˈan-jə-ləs 
1
: a devotion of the Western church that commemorates the Incarnation and is said in the morning, at noon, and in the evening
2
: a bell announcing the time for the Angelus
Word History
Etymology
Medieval Latin, from Late Latin, angel; from the first word of the opening versicle
First Known Use
1658, in the meaning defined at sense 1