Gabriel, Raphael and Michael are each an example of an angel.
One's good angel.
Origin of angel
- Middle English aungel from Old English engel or Old French angele both from Late Latin angelus from Late Greek angelos from Greek messenger
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle English angel, aungel, ængel, engel, from Anglo-Norman angele, angle and Old English ængel, engel (“angel, messenger”), possibly via an early Proto-Germanic *angiluz but ultimately from Latin angelus, from Ancient Greek ἄγγελος (ángelos, “messenger”). Cognate with Scots angel (“angel”), West Frisian ingel (“angel”), Dutch engel (“angel”), Low German engel (“angel”), German Engel (“angel”), Swedish ängel (“angel”), Icelandic engill (“angel”), Gothic (aggilus, “angel, messenger”).