Irish edit

Irish cardinal numbers
 <  16 17 18  > 
    Cardinal : seacht déag
    Ordinal : seachtú déag
    Personal : seachtar déag

Pronunciation edit

Numeral edit

seacht déag

  1. seventeen
    seacht bpunt déagseventeen pounds

Usage notes edit

When used to modify a noun, seacht triggers eclipsis of a following noun, which is in the genitive plural; déag follows the noun.

The form aon deich a seacht was prescribed by Peadar Ua Laoghaire in the 1920s, but it is unclear whether it has ever been used by native speakers.

Mutation edit

Irish mutation
Radical Lenition Eclipsis
seacht déag sheacht déag
after an, tseacht déag
not applicable
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.