Nordwestblock -> England

Kuhn started out with words with initial p-, since Celtic lost p- and
Germanic p- was very rare (since < PIE *b- which is rare). But there
are many dialect words in the Nordwestblock, from the less elevated
register, which begin with p- (Kuhn lists 30). Further he finds in
early English sources (Beda'a Ecclesiastical History, Liber Vitae
Dunelmensis) many PN's beginning with P- which match the first part
of place names in the Frisian area on the continent (and BTW
correspond to Illyrian and Etruscan names, eg

OE Pæ:ga, OFri Paya, MLG Paye, Ill Paiio, Paius;
OE Pælli, Etr Palla, Palius;
OE Pant-, Ill Panto, Pantia;
OE Passa, Ill Passia Passena, Etr Passius;
OE Pætt Patta, Ill Patalus Patalius, Etr Patius, Patina;
OE Pic, *Picc-, Pi:cil, OS *Pikul, Etr Pica;
OE Pinna, Ill Pinnes, Pinneus, Pinnius, Etr Pennus;
OE Piot, Peot(t), *pita, Peota, Etr Pitio, Pitius, Pettius;
OS Poppo, Etr Puppius, Pupius, Pupenus, Pup(p)onius
Gmc *pul-, *pull-, Ill Pullus (Pyllus), Pula, Etr PPullas, Pullo,
Pullius;
OS Pumi, OE Pymma, Etr Pumidius, Pummidius

It seems a number of those that conquered England were Nordwestblock
people who were still using the old names several hundred years after
their homes were taken over by Germanic speakers. From geography it
is evident that the old placenames remained in lesser accesible
regions of the Nordwestblock area; since those migrants apparently
still used the old personal names, one might wonder how well they
spoke Germanic at the time they emigrated, especially whether they
had begun to accept such niceties as gender and case in their speech;
and if not, whether that language might not have been the starting
point for all later 'simplification' (I am a bit wary of using the
term 'creolisation' here) of the languages that came to be spoken in
the area?

Torsten