Pavane
Yes but how do YOU pronounce Nene, & Ouse?
Norfampton (sic) people pronounce it Nenn, whereas below Oundle (pronounced Oondle in Oundle) it reverts to the Neen again.
Now Ouse pronounciation is it?
Still I guess it all comes out in the Wash.

FWIW I once had a book on this subject and a remarkably large proportion of place names where reckoned to be Scandanavian. Anglo-Saxon moreso. The rest pretty well evolved from there with plenty of Old French of course.