seacht déag

== Irish == === Pronunciation === IPA(key): /ʃaxt̪ˠ dʲeːɡ/ (Cois Fharraige) IPA(key): /ʃæxt̪ˠ dʲeːɡ/ === Numeral === seacht déag seventeen seacht bpunt déag ― seventeen pounds ==== Usage notes ==== 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 ===