From Words in English, by Suzanne Kemmer, a professor of linguistics:
The language we call English was first brought to the north sea coasts of England in the 5th and 6th centuries A.D., by seafaring people from Denmark and the northwestern coasts of present-day Germany and the Netherlands. These immigrants spoke a cluster of related dialects falling within the Germanic branch of the Indo-European language family. Their language began to develop its own distinctive features in isolation from the continental Germanic languages, and by 600 A.D. had developed into what we call Old English or Anglo-Saxon, covering the territory of most of modern England.
Read the rest here.
This page also has a ginormous list of neoligisms that even a buttmunch could appreciate.
Some inaccuracies in the dictionary of neologisms you linked to. E.g: ‘Bootylicious’ appears twice. Or are they just trying to make a point?
Yeah, I saw that. Also the definition for buttmunch could be contested … (butt=head butt ???)