in English is:

catechism

Mutations

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

Use

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