By Folk-etymology is meant the influence exercised upon words, both as to their form and meaning, by the popular use and misuse of them. In a special sense, it is intended to denote the corruption which words undergo, owing either to false ideas about their derivation, or to a mistaken analogy with other words to which they are supposed to be related. [The Rev. A. Smythe Palmer, "Folk-Etymology," 1890]
1. The word "volk" translates literally as "folk"
2. The folk-song world was another of his abiding interests.
3. Jack was a folk hero in the Greenwich Village bars.
4. A military band played Russian marches and folk tunes.
5. I don't know what those folk think they are playing at.