Wiciadur:Cyfeirlyfr Gramadeg/Treigladau
(Ail-gyfeiriad oddiwrth Atodiad:Treigladau)
| Cysefin | Meddal | Trwynol | Llaes | Ychwanegu h |
|---|---|---|---|---|
| p | b | mh | ph | - |
| t | d | nh | th | - |
| c | g | ngh | ch | - |
| b | f | m | - | - |
| d | dd | n | - | - |
| g | gollwng | ng | - | - |
| ll | l | - | - | - |
| m | f | - | - | - |
| rh | r | - | - | - |
| a, e, i, o, u, w, y | - | - | - | Ychwanegu h o'u blaenau |