in English is:

mediocrity

Mutations

Soft:gyffredinedd
Nasal:nghyffredinedd
Aspirate:chyffredinedd

Use

y cyffredinedd hwn
fy nghyffredinedd i
dy gyffredinedd di
ei gyffredinedd ef/o
ei chyffredinedd hi
ein cyffredinedd ni
eich cyffredinedd chi
eu cyffredinedd nhw/hwy
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