I would think that the meaning of "Lauriana" springs from the combined meanings of the names
Laura and
Anna -- perhaps suggesting the combined qualities of victory and grace.
The name "Delany" is most likely an alternate spelling of
Delaney.
For a past discussion on middle names, click on this link:
http://www.behindthename.com/wwwboardarc/messages/5884.html
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Nanaea