Singular
NOMINATIVE
treo-uillinn
▪an treo-uillinn
GENITIVE
treo-uillinne
▪na treo-uillinne
Plural
NOMINATIVE
treo-uillinneacha
▪na treo-uillinneacha
GENITIVE
treo-uillinneacha
▪na dtreo-uillinneacha