I'm not quite conversant with the Viking influence upon English. I'm aware there are several loanwords from Danish ( husband..) . Did the Norvegian invasion and then settlement -especially in the North West of England (Lancashire)-have the same linguistic impact ?
I also presume there were two linguistic waves: Through the IX century( Yorkshire) and the second through the XI century with the reign of Canut. Two centuries had passed and Danish must have therefore evolved within that period.
Can one distinguish two loanwords categories thanks to toponyms ( names of places)?
Were the two Danish invasions equally influential?