From: Torsten
Message: 65625
Date: 2010-01-12
>Danish -lv# -> -l#, generalized to -lv- -> -ll- in dialects. That's the cause of that story.
> > Was there ever some type of folk etymology between elm and elf?
>
> Think of the Erl-king. There is confusion between the word for a
> tree, and the nasty spirit. So that folk-etymology exists in
> German, at least.