in English is:

self-development

Mutations

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

Use

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