In the Aeneid, Achates (Ancient Greek: Ἀχάτης, "good, faithful Achates", fidus Achates as he was called) was a close friend of Aeneas;[1] his name became a by-word for a very intimate companion.[2]
^Sergio Casali (May 2008). "The King of Pain: Aeneas, Achates and Achos in Aeneid I". The Classical Quarterly. New Series. 58 (1): 181–189. JSTOR27564131.