Switzerland has four official languages: German, French, Italian, and Romansh. Terms used by locals, and not usually used outside of Switzerland, are known as Helvetisms. Apparently some of these words have been borrowed by others over the years, and heimweh, or homesickness (in German) is one of them, first used by Swiss soldiers posted far afield:
An interesting new word for me was bise:
We felt this wind for the first time the other day, and I could see its rippling effects on the lake, which is otherwise usually clear as glass.
Meanwhile, peacocks and peahens on the United Nations grounds!