The metro station Syntagma, which means Constitution in Greek is in the heart of Athens. It is a demonstration led by a Greek general at the Palais Royal (now the Greek Parliament) in 1843, demanding a constitution for the country that gave its name to this stop. In French, however, “syntagme” is a grammatical term that means group of words. One needs the help of etymology to understand the link between the two meanings. In Greek, “syntagma” means thing arranged, composition, doctrine, organization, putting together : the link between the two words becomes transparent. And for the linguist that I am, to pass every day by the Syntagma stop is a small moment of grammatical happiness.