Name Sebethis Gender Feminine Usage Greek Mythology Scripts Σεβηθίς(Ancient Greek) Pronounced Pron. se-BEE-this Edit Status Status Meaning & History Possibly derived from Ancient Greek, meaning "fast-flowing" or "to go with impetus". This was the name of a nymph in Greek mythology, a daughter of the eponymous god of the Sebeto river, mother of Oebalus, and wife of Telon.