57
| Cuinn | cuiḃeasaċ | cuiḃreaċ |
| cruinn | dliġe | druim |
| duinn | duiḃe | Ó Duiḃir |
| fuinn | fuiġleaċ | fuiḋeaċ |
| fuiġeall | fuinnseog | fill |
| grinn | guiḋe | im |
| impiġ | inntinn | linn (a pool) |
| luim | luiġe | luiġead |
| Muiṁneaċ | muinntir | niṁe |
| niṁneaċ | puimp | rinnce |
| sliġe | suiḋe | Mac Suiḃne |
| soiġead | timċeall | tinn |
| riompe | ruim | Mill |
(a) In the following words “oi” is pronounced î:—roinn, roinnt, doiṁin (dhîng), foiḋinne (fîng-e).
(b) The following pronouns are not lengthened except in poetry:—sinn, linn, againn (accent on second syllable).
73. Protected r never produces a diphthong, but lengthens the preceding vowel.
The following table shows the vowels which are lengthened:—
| a | is lengthened to | á |
| u | „„ | ó |
| ea | „„ | á (first caol vowel) |
| ei | „„ | éi |
| oi[1] | „„ | ói |
| ui[1] | „„ | úi |
| ai | „„ | ái |
