in English is:

sinuosity

Mutations

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

Use

y ddolennedd hon
fy nolennedd i
dy ddolennedd di
ei ddolennedd ef/o
ei dolennedd hi
ein dolennedd ni
eich dolennedd chi
eu dolennedd nhw/hwy
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