A Dictionary of Greek and Roman biography and mythology

(Ἀχιλλεύς). In the legends about

Achilles, as about all the heroes of the Trojan war, the Homeric traditions should be carefully kept apart from the various additions and embellishments with which the gaps of the ancient story have been filled up by later poets and mythographers, not indeed by fabrications of their own, but by adopting those supplementary details, by which oral tradition in the course of centuries had variously altered and developed the original kernel of the story, or those accounts which were peculiar only to certain localities.

[L.S]