From: Stephen Fryer
Message: 4063
Date: 2004-01-17
> Even our third person plural pronoun set isMost Norse influence didn't make itself felt until the Middle English period.
> attributable to the Norse. The interesting things are the usual
> investigative words: how, when, where, who, and why. In the case of "they,
> them, their" the reason seems to be that the OE words in use were rather
> weak, and the ON equivalents were accepted (the "why" if you will).