Béal Átha an Trí Liag

Ballintrillick (Béal Átha an Trí Liag, 'mouth of the ford of the three flags') is a small village in County Sligo, its Irish name suggesting a ford crossing point where three flags or stones marked the boundary. The etymology, while linguistically plausible with 'béal' (mouth/opening), 'átha' (ford), and 'trí liag' (three flags/stones), could not be independently verified through primary source...