in English is:

behaviour

,

conduct[1]

,

demeanour

Mutations

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

Use

yr ymarweddiad hwn
fy ymarweddiad i
dy ymarweddiad di
ei ymarweddiad ef/o
ei hymarweddiad hi
ein hymarweddiad ni
eich ymarweddiad chi
eu hymarweddiad nhw/hwy
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