in English is:

neptunium

Mutations

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

Use

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