Original: However, the Dáil Constitution passed by the Dáil in 1919 made clear that the Príomh Aire (or President of Dáil Éireann as it came to be called) was merely prime minister - the literal translation of Príomh Aire - not a full head of state.
Simplified: The Dáil Constitution passed by the Dáil said that the Príomh Aire was prime minister not head of state.