@ataraxia, I appreciate your answer and your citation. I know the languages I listed are not Indo-European. A quick and dirty 'net search unearthed this. (I do not stand behind it but found it interesting.)
What is written below was in response to the question about whether the Hungarian, Finnish, and Basque languages were related.
"Of course they are related as all human languages are related. The question is how. On the surface they are rather closely related as all are agglutinative. Many linguists believe that all agglutinative languages derived from a single parent language in western Asia. In addition, though Finnish and Hungarian are grouped together as part of the Finno-Ugrian family, Hungarian and Basque language are ergative languages, whereas Finnish is not (it likely lost its ergative case).
How they are related is not difficult to reconstruct. The Finno-Ugrian languages are believed to have migrated from the Caspian Basin via the Volga Valley, the Volga Finnic languages being the oldest languages of that family (at least of the Finnic branch). At the same time, the Basques are now understood as the remnants of a wave of Neolithic migrants who moved westward along the length of the Mediterranian about 7,000 years ago, with their origin in the Caucausus Mountains, on the western shore of the Caspian. Numerous proposals link Basque language to either South Caucasian or Northeast Caucasian languages.
The Caspian, which was a large population center during the last Ice Age, underwent severe flooding and a conversion to salt water about 12,000 years ago. These radical changes caused waves of out-migration in all directions. It can be presumed that there was a common mother language around the Caspian during the Ice Age, that Basque is one descendant of that language and that Finno-Ugric is another.
Some call that mother language Nostratic, which had many other progeny as well."
https://www.quora.com/Why-are-the-B...elated-Do-they-have-a-connection-to-Hungarian