in English is:

abhorrence

Mutations

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

Use

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