Loads of Swedish words are like English words but obscurely related. For instance, fire = brand. Think brand as in cattle, or a flaming branch used as a torch etc. Lots more examples but I forget.
It’s Viking influence but also remember that Vikings and Danes are similar, and whilst they were spreading into the British Isles they were also spreading around Scandinavia and Northern Germany to later come to the UK – so some stuff came here second hand via Sweden, Denmark and Germany etc.