Prawfddarllenwyd y dudalen hon
| Cymraeg | Gwyddelaeg. | Cymraeg. | Gwyddelaeg | Cymraeg. | Gwyddelaeg. |
| Afu | Aef | Ardderchog | Oirddeirch | Bastard | Bastardd |
| Aithin | Attin | . | . | Blwyddyn | Bliawyn |
| Afal | Aful | Asen | Asna | Bloneg | Blonig |
| Anadl | Anal | Aur | Or | Byddar | Boddar |
| Amser | Aimsir | Bara | Aran | Bord | Bordh |
| Bru | Bru | Garfan | Gairman | Nain | Nain |
| Bon coes | Bôn côsh | Gafr | Gafar | Nef | Nef |
| Benyw hen | Bun bean | Glas | Glas | Nerth | Nert |
| Brân | Brân | Glyn | Glen | Niwl | Neul |
| Bramu | Brimmo | Glin dost | Gluin dos | Neidr | Nathair |
| Byw | Beo | Glynu | Glenu | Dynan newydd eni | Denan naoidd eni |
| Bywyd | Biad | Glöyn | Gloin | O buan | O ban |
| Bwa | Boha | Gwallt glân | Folt glann | Pwll | Poll |
| Bwth | Both | Goglais | Giglif | Pobl | Poibliach |
| Cach | Cac | Gwer | Geir | Rhanu | Rannan |
| Ceryg | Carig | Gŵydd | Gedd | Rhawn | Roin |
| Ceraint | Caraid | Gweddi | Gwyddif | Rhin | Run |
| Celyn | Culin | Gwyddelaeg | Goiddelg | Rhi | Ri |
| Cerbyd | Carbod | Isel | Iseal | Rhef | Reif |
| Ci hir | Cu hêr | Llaw ddeheu | Law deha | Rhudd | Ruaidd |
| Cenedl | Cinel | Lledr | Lleathir | Sal | Sal |
| Cidwm | Cidwm, i.e.Cadnaw | Llefaru | Llafairt | Saer | Saor |
| Cil drws | Cul dorus | Lliain | Llian | 'Sgubor | Sgibol |
| Claf | Claf | Llo | Llo | 'Sgubo | Sguabo |
| Cleddyf | Cloiddef | Llosgi | Lloisci | 'Sgefain | Sgeafain |
| Cogel | Cuigel | Llys | Llis | 'Sgian | Sgian |
| Cnau | Cnu | Llydan | Llethan | 'Sgubell | Sguab |
| Crybach | Crabach | Lludw | Lluoth | 'Sbleddach | Spleddach |
| Croen | Croian | Llysiau | Llyssan | 'Sgolpen | Sgolb |
| Crib | Criban | Llong | Llong | Sibwl | Siobal |
| Crogi | Crochu | Llygod | Llychod | Sopen | Soipin |
| Crwth | Crwith | Llyfr | Leafir | Swch | Soc |
| Cwyr | Coir | Mawr | Môr | 'Stôl | Sdôl |
| Cwyno | Cwynif | Maer | Maor | Sudd | Suf |
| Cyffion | Cleiffion | Mab glân | Mac glan | Taradr | Tarar |
| Dall | Dall | Mantach | Mantoch | Tasg | Tasga |
| Dalen | Dailen | Madyn | Madah | Tarw | Tarw |
| Deri | Dair | Mall | Mall | Tid | Ted |
| Dlyed | Dlia | Marw my ddau fab | Marf moddia macsa | Tes | Tês |
| Dof | Taf | Marwnad | Marnah | Tew | Tiw |
| Dyn | Duin | Marchog | Marcach | Toes | Taos |
| Drwg | Droch | Maidd | Meadd | Torog | Toroch |
| Du | Du | Mân | Mên | Ton | Ton |
| Draenog | Graenog | Mêl | Mil | Trais | Treis |
| Dwrn | Dorn | Mes | Mês | Trwm | Trom |
| Dwfn | Dofuin | Memrwn | Memruin | Truan | Truhan |
| Edn | Ean | Melin | Muilen | Troed | Troid |
| Eiddiorwg | Eiddeau | Mollt | Mollt | Tri gwr | Tri wr |
| Eog | Eo | Moch | Moc | Ty | Te |
| Eingion | Inneon | Môr | Muir | Tylau | Tylah |
| Esgud | Esgaid | Mysg | Mesc | Twlc | Tolch |
| Ffroen | Ffron | Mud | Muit | Twrch | Torc |
| Gardd | Garda | Mynydd | Monydd | Waen | Wain |
| Gafael dân | Gafal tein | . | . | Wy | Hwi |
