My source was a linguist, not my invention and is not just a matter of using false cognates or homophonous meaning different things to write whatever funny association as Taty writes, it's all about history. Even the variations you have mentioned used similar root. Yet, for every theory -even the ones anyone can write- there's an anti-theory in a world where science no longer exists but thousands of scientists in Neo-Babel specialities saying contradictory things. It's a well known fact Scandinavian people traveled far away and the contact was there so I'm not saying nothing new that historians didn't know. Vikings were in Northambria and in fact influenced the English language. For example the word "skull" comesa from Northmen skol and reminds the time when Vikings drank beer in the skulls of their enemies.
English German Dutch
bath bad bad
best best best/bedste
blind blind blind
book buch boek/bog
bread brot brood/ brod
break brechen breken/ braekke
brown braun bruin/brun
cold kalt koud/kold
come kommem komme
dance tanzen danzen/danse
daughter Totchter dotcher/datter