in English is:

confirmation

,

corroboration

Mutations

Soft:gadarnhad
Nasal:nghadarnhad
Aspirate:chadarnhad

Use

y cadarnhad hwn
fy nghadarnhad i
dy gadarnhad di
ei gadarnhad ef/o
ei chadarnhad hi
ein cadarnhad ni
eich cadarnhad chi
eu cadarnhad nhw/hwy
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