compline
noun
com·pline ˈkäm-plən 
-ˌplīn
often capitalized
: the seventh and last of the canonical hours
Example Sentences
Recent Examples on the Web The day ends with a prayer at 9 P.M., called compline, after which followers are encouraged to rest until the morning. 
Eliza Griswold, The New Yorker, 11 Apr. 2020
Eliza Griswold, The New Yorker, 11 Apr. 2020 Word History
Etymology
Middle English compline, complie, from Anglo-French cumplie, modification of Late Latin completa, from Latin, feminine of completus complete
First Known Use
13th century, in the meaning defined above