[quote=So Boerd]
Angelos is Greek, and simply means messenger. Could've been a Latinized name.
[/quote]

Doing some digging, and Angelos is a "late" Greek word.

"The word angel in English is a blend of Old English engel (with a hard g) and Old French angele.[4] Both derive from Late Latin angelus "messenger of God," which in turn was borrowed from Late Greek ἄγγελος ángelos."

I am a wiki-warrior. This much is true.