The name Delaney comes from the Irish O'Dubhshlaine. Its earliest anglicized form is O'Dulany with a broad `a.' Delane is another variant (the O' has been long since dropped). It is sometimes mistakenly associated with the Limerick surnames O'Duillean, Dillane and Dillin, though there is no relation.
Dubh means black or dark. That's the easy part, but some dispute arises over … [Read more...] about Irish Roots:
Some Light on the Dark Clan
Irish America