Phthius
Φθίος
(Φθίος).
1. A son of Poseidon by Larissa, from whom Phthia in Thessaly was said to have derived its name. (Eustath. ad Hom. p. 320; Dionys. A. R. 1.17.)
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.