It's an example about the influence of the language spread by the people who were in specific place and time. So, when someone makes irony of things he (she) barely knows it's needed a reminder of these things. If an ancient Viking ship with a dragon in the front arrived in Island harbour, it wouldn't be a problem the communication so we need to study deeper the reasons of these similarities to discover when people met and how the language was spread. I'm mentioning Dutch and Denmark, well were these people offspring of Vikings too? How come Russian language itself was influenced by this if they were visited by Vikings themselves? So, you can't limitate yourself thinking that because you know Russian you already know too much. You should understand maybe the Viking history is related to Russians even before the dogma they taught you in school. I can give you another example. Jewish Russian ancient languages researcher, Zecharia Sitchin, explains Chinese and Sumerian indeed have something in common like glyphs or math spots linked to lines like Fran Rampsey math. He's right. It's not only his discovery but other people have analized cuneiform writing and compared:
www.creationism.org/csshs/v07n4p24.htm