in English is:

genius

,

perception

Mutations

Soft:grebwyll
Nasal:nghrebwyll
Aspirate:chrebwyll

Use

y crebwyll hwn
fy nghrebwyll i
dy grebwyll di
ei grebwyll ef/o
ei chrebwyll hi
ein crebwyll ni
eich crebwyll chi
eu crebwyll nhw/hwy
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