[Huinesoron]

A quick one, then, to grant you legitimacy:

My first starts the name of the queen of the world
My second's in the Dark Lord's new name, and also his first
My third's in Felagund and his niece - but not in his heir
My fourth, not in Nerwen's name, but husband and child share it
My last would go unwritten in Tengwar in English
My whole gives a riddle to somebody else.

hS

(Edited to correct second clue.)