Where did the Ukrainians get the word апельсини from?
According to the Etymological dictionary of the Ukrainian language, it's loaned via Russian from Dutch appelsien, and Dutch appelsien is a based on French pomme de Chine:
Wow, thanks! Here, have a lingot :)
Коштуе singular and Коштують for more than one?
That's why I clicked on this discussion. Yey, thank you for the clear answer.