the.com/archangel

means A chief or high-ranking angel, positioned above ordinary angels and typically entrusted with major missions or leadership over the angelic ranks.

from From Late Latin archangelus, from Greek archangelos — arkhi- ('chief, ruling') fused with angelos ('messenger'). The arkhi- prefix is the same one lurking in 'architect' and 'monarch,' always marking the one in charge; angelos itself originally just meant a messenger or envoy, human or divine, before Christian usage narrowed it to heavenly ones. So an archangel is, quite literally, the messenger put in charge of the other messengers.