Is there a word that can be seen in virtually all daughter languages of PIE?
I think it'd be interesting to see if there was some sort of tree diagram that could be made, maybe grouping language families together, just to see in one diagram the scope of one word's multiple travels down from PIE to the languages of today, maybe being able to visually see sound changes. Of course there will be the odd few cases where the etymology is doubted and it is not possible to say if there was a borrowing and that specific form wasn't exactly an organic descendant, but for the wider picture, it'd still be interesting. Has anyone ever seen anything like this before?