G0743–ἀρχάγγελος–archangelos

Because the Lord himself will come down from heaven with a word of authority, with the voice of the chief angel, with the sound of a horn: and the dead in Christ will come to life first;

ἀρχαγγέλου archangelou “of an archangel”

Now when Michael, one of the chief angels, was fighting against the Evil One for the body of Moses, fearing to make use of violent words against him, he only said, May the Lord be your judge.

ἀρχάγγελος, archangelos “archangel,”