Archangel (Gr.). Highest supreme angel. From the Greek arch, “chief” or “primordial”, and angelos, “messenger ”.
Source: H.P.Blavatsky - The Theosophical Glossary
Archangel. Highest, supreme angel. From the two Greek words, arch, "first," and angelos, "messenger."
Source: H.P.Blavatsky - The Key to Theosophy, The theosophical glossary