From "Tolkien: A Cultural Phenomenon" (2003) by Brian Rosebury

This text is reproduced exclusively for the purposes of discussion on The One Ring.net.

[page 25] 

‘Real names tell you the story of the things they belong to in my language, in the Old Entish as you might say. It is a lovely language, but it
takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a long time to say, and to listen to.

‘But now ... what is going on? What are you doing in it all? I can see and hear (and smell and feel) a great deal from this, from this
a-lalla-rumba-kamanda-lind-or-burúmë
. Excuse me: that is a part of my name for it; I do not know what the word is in the outside languages:
you know, the thing we are on, where I stand and look out on fine mornings, and think about the Sun, and the grass beyond the wood, and
the horses, and the clouds, and the unfolding of the world. What is going on? I like news. But not too quick now.’ (TT, 68-9)