"Relatedness" is a very thorny notion here because we cannot discount the possibility of long-range contact influence in Western Eurasia. Many ancient Indo-Euro

"Relatedness" is a very thorny notion here because we cannot discount the possibility of long-range contact influence in Western Eurasia. Many ancient Indo-European languages had some kind of ablative or locative case, and accusative was often used in a directional sense. However, localtive-case systems of Hungarian and Finnish are much more developed than anything we see in Indo-European (Latin has at most 3 cases with locative/directional semantics; Hungarian has 9; Finnish has 8), so it's a different system anyway.