(Ἄρκη), a daughter of Thaumas and sister of Iris, who in the contest of the gods with the Titans sided with the latter. Zeus afterwards punished her for this by throwing her into Tartarus and depriving her of her wings, which were given to Thetis at her marriage with Peleus. Thetis afterwards fixed these wings to the feet of her son Achilles, who was therefore called ποδάρκης. (Ptolem. Hephaest. 6.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890