Where does “Pen-y-ghent” come from?

Pen-y-ghent (English) comes from Cumbric *penn, from Cumbric *ı, from Cumbric *cog — cuckoo.

Ancestry of “Pen-y-ghent”, step by step

StepLanguageWordMeaning
1Cumbric*pennhead
2Cumbric*ıthe
3Cumbric*cogcuckoo
Every word from Cumbric *cog →Every word from Cumbric *ı →Every word from Cumbric *penn →