The Hungarian word ház (house) looks a lot like the German "Haus", the Dutch "huis", and the English "house" so one would think that Hungarian borrowed the word from German some time long ago. But it fact, the word is cognate with (descended from the same word as) the Finnish "koti" (home) and Estonian "kodu" (home) and has no relation with any Germanic language. It is purely coincidental that they look alike.
Extra note: Finnic k shows up often as Hungarian h. Other examples are:
Finnish: kala
Estonian: kala
Hungarian: hal (fish)
Finnish: kuusi
Estonian: kuus
Hungarian: hat (six)