κωνσίλιον

From LSJ

ὃ σὺ μισεῖς ἑτέρῳ μὴ ποιήσεις → don't do to others what you don't want them to do to you

Source

Dutch (Woordenboekgrieks.nl)

κωνσίλιον -ου, τό = Lat. consilium.