I’m a bit confused by this. When I look up – the Ace of Hearts (or the Queen of Hearts srl) – on Teanglann or Focloir, it’s either – an t-Aon Hairt or an t-Aon Hart. On http://www.irishpage.com/cardgame.html – Cartai Imeartha, it’s – hart. Which one is correct – genitive or not ?
Interesting question. Indeed, Ó Dónaill’s Foclóir Gaeilge-Béarla and the new online English-Irish dictionary seem to prefer “hart” (no genitive), whereas de Bhaldraithe’s English-Irish Dictionary has “hairt” (genitive). In a way, it would make sense to use the genitive case here, but most sources appear to argue against it, so it would be good to have the opinion of a native speaker…