Why? My father allways called his Grandmother for Busia. Just as everybody else in the family
How was she born in Poland in 1906?
Republic of Poland (the state) =//= Poland the geograhpical area in an literal sense. Although since it has the state of Poland has been fairly unmoved for a time people would easily understand where in the general area it's being spoken about. Of course you seem to pretend your stupid to heat up an senseless argument or well... No words for that sorry.
It seems that it's a word used mostly in the US that seems odd in Poland - perhaps like some of the words that mostly went out of English English centuries ago but are still used over there. Like cordwood, gotten or
Not really I would say... Depends on the family, most likely if the family had lived under the Russian yoke then they were most likely to continue it I guess.