Can you explain what you mean by "folkish"? I googled and got very little except this wikipedia page https://en.wikipedia.org/wiki/V%C3%B6lkisch_movement but it seems to be only based on a literal translation from German.
The sibling comment is circumlocutious but it's what you might think it is when you read the Völkisch wikipedia page. Here's another link that uses the term directly:
