in English is:

phrenology

Mutations

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

Use

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