Bob W wrote:
[...]
[...[T]he origin of the Scaninavian word laks (salmon)] has cognates in many languages: Icelandic lax(fiskur), Russian losos, German Lachs, meaning 'salmon'. Some linguistics deduce that the proto-Indo-European ancestor was 'loks'.
Good heavens! All that time and distance, to apply to the salmon [Lox} I eat for my Sunday brunch!
This could show that the PIE people came from a region of salmon rivers. This evidence is supported by some of the other reconstructed words such as sneighw (snow), bherhgo (birch) and so on.
PIE people?
On the other hand, the cognate of loks in some other languages means 'trout', or just 'fish'.
http://dienekes.angeltowns.net/articles/ieorigins/
keith whaley

