in English is:

synchronization

Mutations

Soft:gydamseriad
Nasal:nghydamseriad
Aspirate:chydamseriad

Use

y cydamseriad hwn
fy nghydamseriad i
dy gydamseriad di
ei gydamseriad ef/o
ei chydamseriad hi
ein cydamseriad ni
eich cydamseriad chi
eu cydamseriad nhw/hwy
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