in English is:

defamation

Mutations

Soft:ddifenwad
Nasal:nifenwad
Aspirate:(no mutation)

Use

y difenwad hwn
fy nifenwad i
dy ddifenwad di
ei ddifenwad ef/o
ei difenwad hi
ein difenwad ni
eich difenwad chi
eu difenwad nhw/hwy
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