I went and researched it! I get the feeling it was originally made up (not that all names weren’t, but I mean recently), because it has become a trend to add ‘ta’, ‘la’ or ‘da’/‘de’ to the front of other names ([name]Laila[/name]) - like [name]Latasha[/name].
While I would personally still count them as made up, they are in use, because there were myspace profiles under the names.
Talaila was ranked # 1,707,289 in the US (I’m not sure what year that was in, but there was only one born [in [name]Florida[/name]]), and Talailah (one again, this time in Kansas) was # 1,707,290. Talaila is also the name of a Nature Reserve Area in Syria.
Delaila is the name of a clothing brand (not famous obviously, though, so that isn’t a problem). ‘Song of Umm Dalaila, the [name]Story[/name] of the Sahrawis’ was a short '93 documentary on the plight of the Sahrawis, people from a country which has been absorbed into [name]Morocco[/name] and are now (or were in '93) living as refugees, due to immense discrimination.