In common speech, teremok is a small wooden or stone house[1], like the one from a fairy-tale of the same name [2]. Also a name of a fast food chain. Blini = pancakes. Kvas = Russian national non-alcoholic (<1%) beverage.
Initially it was a term for an upper living floor in a rather big medieval russian house. Like a penthouse. After some time it became a synonym for a such house with "terem".