in English is:

hill country

Mutations

Soft:fynydd-dir
Nasal:(no mutation)
Aspirate:(no mutation)

Use

y mynydd-dir hwn
fy mynydd-dir i
dy fynydd-dir di
ei fynydd-dir ef/o
ei mynydd-dir hi
ein mynydd-dir ni
eich mynydd-dir chi
eu mynydd-dir nhw/hwy
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