| Aicme Beithe | Aicme Muine | ||
| ᚁ | Beith | ᚋ | Muin |
| ᚂ | Luis | ᚌ | Gort |
| ᚃ | Fearn | ᚍ | nGéadal |
| ᚄ | Sail | ᚎ | Straif |
| ᚅ | Nion | ᚏ | Ruis |
| Aicme hÚatha | Aicme Ailme | ||
| ᚆ | Uath | ᚐ | Ailm |
| ᚇ | Dair | ᚑ | Onn |
| ᚈ | Tinne | ᚒ | Úr |
| ᚉ | Coll | ᚓ | Eadhadh |
| ᚊ | Ceirt | ᚔ | Iodhadh |
| Forfeda | |||
| ᚕ | Éabhadh | ||
| ᚖ | Ór | ||
| ᚗ | Uilleann | ||
| ᚘ | Ifín | ᚚ | Peith |
| ᚙ | Eamhancholl |
nGéadal (Ngéadal or Ngeadal) is the Irish name of the thirteenth letter of the Ogham alphabet, ᚍ.
The Bríatharogam (kennings) for the letter are:
Its meaning is probably "[the act of] wounding". In Old Irish, the letter name was Gétal. It may be a verbal noun of gonid 'wounds, slays'. in which case is related to Welsh gwanu 'to pierce, to stab', which comes from the root was *gʷhen- 'to pierce, to strike'. Its original phonetic value in Primitive Irish was [ɡʷ], the voiced labiovelar. In Old Irish, this phoneme merged with g (gort), and the medieval manuscript tradition assigns it Latin ng [ŋ], hence the unetymological spelling of the letter name with initial n-.