Mouth of the ford — or town of the. Written Ballina, Ballyna — the same Irish word, béal an átha / baile na, in the spellings English gave it.
Mouth of the ford — or town of the: it is the Irish béal an átha / baile na. It is written Ballina, Ballyna in English spellings of Irish names.
béal an átha / baile na. English spellings of the same word include Ballina, Ballyna, because the names were written down by ear.
Ballinamore (Béal an Átha Móir), Ballynahinch (Baile na hInse), Ballina (Béal an Átha), Ballinasloe (Béal Átha na Sluaighe).