Wiktionary also says the Swedish “prata” comes from Proto Germanic: https://en.wiktionary.org/wiki/Reconstruction:Proto-Germanic/prattuz https://en.wiktionary.

Wiktionary also says the Swedish “prata” comes from Proto Germanic: https://en.wiktionary.org/wiki/Reconstruction:Proto-Germanic/prattuz https://en.wiktionary.org/wiki/Reconstruction:Proto-Germanic... So perhaps the Middle Low German and Scandinavian words just have the same old origin.