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175. Fiċe, ceud, and míle, together with the old words for 30, 40, 50, &c., are really nouns[1] and can be declined.
| Nom. | fiċe | gen. | fiċead | dat. | fiċid | pl. | fiċid |
| „ | ceud | „ | céid | „ | ceud | „ | ceudta |
| „ | míle | „ | míle | „ | míle | „ | mílte |
The other words are 5th declension, and form their genitive by adding d.
176. Míle, a thousand, or a mile, and ceud, a hundred never change their forms after a numeral; naoi míle, 9,000, or 9 miles.
The Personal Numerals.
177. The following numeral nouns are used especially of persons. All, with the exception of dís and beirt, are compounds of the word fear, a man (the f of which has disappeared owing to aspiration), and the numeral adjectives.
| aonar[2] (aon-ḟear) | one person | |
| [dís (días)] | a pair, a couple | |
| beirt | two persons, a couple[3] | |
| triúr (or triar) (trí-ḟear) | three persons | |
| ceaṫrar (ceaṫair-ḟear) | four persons | |
| cúigear | five persons | |
| seisear | six persons | |
