in English is:

materialism

Mutations

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

Use

y fateroliaeth hon
fy materoliaeth i
dy fateroliaeth di
ei fateroliaeth ef/o
ei materoliaeth hi
ein materoliaeth ni
eich materoliaeth chi
eu materoliaeth nhw/hwy
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