Jam lucis orto sidere
Appearance
"This hymn has frequently been ascribed to St. Ambrose, but it is not assigned to him by the Benedictine editors, or by Biraghi in his Inni sinceri e carmi di Sant' Ambrogio, 1862. It is certainly ancient, and may possibly be as old as the 5th cent." —"Jam lucis orto sidere," by James Mearns in A Dictionary of Hymnology, (ed.) by John Julian (1892)
English-language translations of Jam lucis orto sidere include: