What Is Delaney In Irish?

What Is Delaney In Irish? Delaney is an Irish surname derived from the Gaelic Ó Dubhshláine, Dubh meaning black and Sláine for the River Sláine (Slaney). DeLaney is also of Norman origin. There is a branch of Dulaneys in the United States who trace back to a Thomas Delany. What part of Ireland is Delaney