in English is:

defile

Mutations

Soft:gyfyng
Nasal:nghyfyng
Aspirate:chyfyng

Use

y cyfyng hwn
fy nghyfyng i
dy gyfyng di
ei gyfyng ef/o
ei chyfyng hi
ein cyfyng ni
eich cyfyng chi
eu cyfyng nhw/hwy
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