The Narn i Chîn Húrin: Beleg & Falivirn

[Aiwendil]

NA-SL-04 is proving quite tricky. I thought of:

of {Gnomish lords}[scattered wood-men] [overwhelmed] by night {beleaguered}

But I don't think that in Tolkien's idiom 'w' alliterates with 'wh'.

Another possibility is:

of {Gnomish lords}[Elves and Men] {by night}[at eve] beleaguered

But I'm not sure that 'at eve' makes sense, if the point is that the Orcs took their victims at unawares in the dead of the night.