in English is:

reasonableness

Mutations

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

Use

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