Some of you may be wondering what Orènyiel might mean. Well, I asked my friend (who is deeply into Tolkien) if he could figure out a word or short phrase in Elven to express a feeling I have. Actually his wife (also my friend ;) ) came up with it for me. What I wanted was a word that meant "Daughter of my heart, but not my body". 

Orènyiel, loosley translates into Heart's Daughter. That is close enough.