[tamirzb]

This sounds interesting but I don't think it holds true?

Going by the languages I have some knowledge of, that doesn't hold true for Portuguese, where the word "country" itself is masculine but the truth is different countries have different genders. I guess it would be the same for other latin languages? (at least for Spanish). German is also the same but the word "country" is neutral.

I guess it does somewhat hold true for my native language, Hebrew, where all the words you specified but "house" are feminine. So I guess it might also hold true for Arabic then?