Gratis and libre used usually to differenciate the terms: https://en.wikipedia.org/wiki/Gratis_versus_libre
Both of them are latin words so I expect they show up in similar forms in most European languages. Free is a Germanic origin word.
In Hungarian we use the word Gratis as well with Hungarian spelling: "Grátisz" even though Hungarian is not an Indo-European language. Libre is not used in common speech here.
I don't get what @Freeman@lemmings.world wanted to say