Eustathius goes against Porphyry's etymology (see φύξηλις / φεύγω + ἴλη) for the reason that the iota of the alleged etymon cannot yield the attested eta of the lemma. He favors a different etymology where the second element is ἅλις "enough, in large quantity", relying on the familiar alternation α ~ η, and accounting also for the [li] of the last syllable. However, from the semantic point of view, this etymology is weaker: "to flee sufficiently" is not convincing. It is a rare example in which form is preferred to meaning in the building of the etymology