ollchathair

== Irish == === Etymology === From oll- (“great”) +‎ cathair (“city”). === Noun === ollchathair f (genitive singular ollchathrach, nominative plural ollchathracha) megalopolis ==== Declension ==== === Mutation === === References === Ó Dónaill, Niall (1977), “ollchathair”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN