Shippey is quite right, even more so when one looks at the dialects spoken in Lincolnshire, Yokshire and along the Northumbrian coast. For fun (a bit of which this board could use right now), look at the number of villages in these counties were the town's name ends in either -ton or -by. "Tun" was the Old Norse word for village and "By" the Old Norse word for town. Those fellows not only raped, sacked and pillaged, but put down roots, as well, both domestic and linguistic.