If memory serves right the Finnic language used to expand as far as Perm so it’s possible that when the Hungarians were still nomadic they were brushing up against the Finnic groups and picked up some words. As for Frisian as I said they are ancient as in they were doing Viking raids against Rome, they have interacted with damned near every Germanic language, a couple Celtic languages, and Latin where they picked up weird words is anyone’s guess and that’s assuming that these aren’t archaic words held on from some even more ancient source.