Name Sao Gender Feminine Usage Greek Mythology Scripts Σαώ(Ancient Greek) Pronounced Pron. SAY-o Edit Status Status Meaning & History Means "rescuer" in Greek, itself from σῶς (sos) "safe and sound, alive and well". This was the name of a Nereid, one of the fifty nymphs born to Nereus and Doris in Greek mythology. A moon of Neptune was named after her.