In reply to Anonymous:
This theory re the Peak District name is not quite right, actually. 'Pecsaetan' means the (Anglo-Saxon) 'Settlers of the Pec', the Celtic name for the area we now call the Peak. And, contrary to what some pundits claim, Peak
does mean 'pointy/peaked' and has exactly the same derivation as the word Pic in Europe (eg. the Pyrennees and France). Also a whole lot of other anglo-saxon and norse words have a similar origin eg. pick, peck, pike, spike, prick, beak.