Huh... I wonder if the the "eng" from England and English related to the Middle English englen and Old English englas for "angels"? Is England the land of angels?
According to the Venerable Bede, Pope Gregory I drew the same parallel in ~595: "Non Angli, sed angeli – They are not Angles, but angels. Well named, for they have angelic faces and ought to be co-heirs with the angels in heaven.".
Edit: Ah, no. It's from the Angles: https://en.m.wikipedia.org/wiki/Angles