67%RatingSave Gender Feminine Usage Greek Mythology Scripts Σαώ(Ancient Greek) Pronounced Pron. /sa.ɔ̌ː/(Classical Greek) /ˈseɪ.oʊ/(English) [key·simplify] Meaning & History Derived from Greek σῶς (sos) meaning "whole, unwounded, safe". This was the name of one of the Nereids in Greek mythology. A small moon of Neptune is named for her. Related Names RootsosUser SubmissionSao Categories Ancient Greek words, health, help, moons, moons of Neptune, Nereids, protection, safety