in English is:

parochialism

Mutations

Soft:blwyfoldeb
Nasal:mhlwyfoldeb
Aspirate:phlwyfoldeb

Use

y plwyfoldeb hwn
fy mhlwyfoldeb i
dy blwyfoldeb di
ei blwyfoldeb ef/o
ei phlwyfoldeb hi
ein plwyfoldeb ni
eich plwyfoldeb chi
eu plwyfoldeb nhw/hwy
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