From: Piotr Gasiorowski
> You can attempt to pick out whatever happens to be similar in a few and*kosa, *svekUrU and *svekry have *k before the reflexes of pre-Slavic
> use that, but there are many that differ. The most common in Slavic
> appears on the surface as KYa > Ka , but of course the a is caused by x
> in most of those cases.