For some time I've been wondering over the following question - was Tolkien familiar with Russian and could he make use of some Russian words?
While reading UT I came across the word DRUG. In Russian it means
friend or
companion - just the role that the Druedain were playing for the folk of Haleth.
In a couple of names there is a stem VORON that is like
raven, a bird that serves as messenger of gods - sounds true in case of Voronwe.
Anyway, is there something in all that?