in English is:

carelessness

,

negligence

,

laxity

Mutations

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

Use

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