in English is:

decomposer

Mutations

Soft:ddadelfennydd
Nasal:nadelfennydd
Aspirate:(no mutation)

Use

y dadelfennydd hwn
fy nadelfennydd i
dy ddadelfennydd di
ei ddadelfennydd ef/o
ei dadelfennydd hi
ein dadelfennydd ni
eich dadelfennydd chi
eu dadelfennydd nhw/hwy
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