From the Norman surname "De l'aunaie" that also holds the Irish meaning, "descendant of the challenger." This boy's and girl's name first appeared on the chart in 1991 and moved into the top 200 by 2002. Possibly inspired by actress Kim Delaney and her career from the 1980s to the 2000s with her most notable roles in "NYPD Blue" and "Tour of Duty." A fashionable name that follows a trend to use surnames as given names. From the elder tree grove.