Crīmen from cernō
Fragment of a discussion from User talk:Rua
Well, it was not my fabrication, it is on that referred dictionary (on which for discrīmen indicates from *discerimen, should this seem more plausible). But could you not just have deleted the *cernimen form instead of the whole etymoloy?
I guess I didn't need to delete all of it. From what I can see, it goes back to Proto-Italic *kreimen, from a PIE form *kréy-mn̥ (oblique *kri-mén-), but I don't know if that form can be reconstructed for PIE itself.