Singular
NOMINATIVE
borrthroitheán
▪an borrthroitheán
GENITIVE
borrthroitheáin
▪an bhorrthroitheáin
Plural
NOMINATIVE
borrthroitheáin
▪na borrthroitheáin
GENITIVE
borrthroitheán
▪na mborrthroitheán