Celeus — king of Eleusis, husband of Metaneira
Ancient Greek word, found 10 times in the texts on Socratos.
Homeric Hymns, Hymn 2 to Demeter 96: πρίν γʼ ὅτε δὴ Κελεοῖο δαΐφρονος ἵκετο δῶμα,