Former Fianna Fáil TD Declan Breathnach has apologised to Sinn Féin President Mary Lou McDonald over a tweet he published in 2018.
Ms McDonald sued the former Co Louth TD over a post he published on Twitter in reply to a tweet she had posted in support of the now-retired Garda Sergeant Maurice McCabe.
At the High Court, Mr Justice Charles Meenan heard that the proceedings had been settled on terms.
As part of the settlement an apology by Mr Breathnach, who lost his Dáil seat in this year's election, was read to the court by his counsel Darren Lehane.
Mr Breathnach said in his statement: "I deeply regret that I made these unfounded and damaging accusations and I retract them in full.
"I unreservedly apologise to Ms McDonald for the upset and distress caused by my comments and for my unjustified attack on her reputation."
Senior Counsel Tom Hogan instructed by Johnson solicitors, for Ms McDonald told the court that the other terms of the settlement were "confidential".
Counsel asked the court to adjourn the matter for a month to allow for the implementation of the other terms.
He added he did not expect the matter to trouble the court any further and that final orders could be made on the return date.
Mr Justice Meenan agreed to put the matter back for mention to a date in August.
