Uncertain. Probably a loan word, and probably related to ἄγγαρος (ángaros, “Persian mounted courier”) (whence Latin angarius), which is probably from an East Asian language (see also Sanskrit अजिरा (ajirā, “agile, swift”)). Klein suggests Semitic; but it could also be from Pre-Greek.
- (5th BC Attic): IPA: /áŋɡelos/
- (1st BC Egyptian): IPA: /áŋɡɛlos/
- (4th AD Koine): IPA: /áŋɡelos/
- (10th AD Byzantine): IPA: /áŋɡelos/
- (15th AD Constantinopolitan): IPA: /á̃ɡelos/
- ἄγγελος in A Greek–English Lexicon by Liddell & Scott, Clarendon Press, Oxford, 1940
- G32 in Strong's Exhaustive Concordance to the Bible.
- Robert S. P. Beekes (2010) Etymological Dictionary of Greek, Leiden, Boston: Brill Academic Publishers, volume I, page 9
- “ἄγγελος” in Hjalmar Frisk (1962–1973), Griechisches etymologisches Wörterbuch, in 3 vols, Heidelberg: Carl Winter
- Klein, Dr. Ernest, A Comprehensive Etymological Dictionary of the English Language, Amsterdam: Elsevier Scientific Publishing Co., 1971.
- The Oxford English Dictionary, 2nd ed., Clarendon Press, 1989.