κυριόδουλος

From LSJ

κάλλιστον ἐφόδιον τῷ γήρᾳ ἡ παιδεία (Aristotle, quoted by Diogenes Laertius 5.21) → the finest provision for old age is education

Source

Greek Monolingual

κυριόδουλος, ὁ (Μ)
κύριος και ταυτόχρονα δούλος.