in English is:

illuminism

Mutations

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

Use

yr ilwminiaeth hon
fy ilwminiaeth i
dy ilwminiaeth di
ei ilwminiaeth ef/o
ei hilwminiaeth hi
ein hilwminiaeth ni
eich ilwminiaeth chi
eu hilwminiaeth nhw/hwy
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