Cognates, etc.

I'm not sure the purpose of the lists is simply to provide cognates (at least it wasn't the last time I edited these lists). If the terms listed are simply cognates, and can mean wildly different things, the wildly different meanings need to be explicitly marked, or the lists lose much of their usefulness.

As for the question marks - I don't have the right keyboard layout for serbian cyrillics installed, so I can't add them myself, but question marks are surely superfluous. The information is simply missing, not unknown, as question marks would indicate, and we certainly don't put question marks in other columns.

The lists are useful in giving an overview of cognates that descend from a common Slavic form, and can be compared to Appendix:List of Proto-Indo-European nouns. We already have another list that lists words with the same meaning, Appendix:Swadesh lists for Slavic languages. I don't think putting the meanings in the table would really be helpful since the purpose isn't to show meanings but just to show the forms of the words themselves. It would also clutter up the table and make it harder to read. On the other hand, we do list meanings on Proto-Slavic entries if they differ notably from the original meaning.