in English is:

Platonism

Mutations

Soft:Blatoniaeth
Nasal:Mhlatoniaeth
Aspirate:Phlatoniaeth

Use

y Blatoniaeth hon
fy Mhlatoniaeth i
dy Blatoniaeth di
ei Blatoniaeth ef/o
ei Phlatoniaeth hi
ein Platoniaeth ni
eich Platoniaeth chi
eu Platoniaeth nhw/hwy
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