I kind of like it but it doesn't really mean Hunter or Dark Rider, does it?
Kind of. The thing is there isn't an element that means "rider". Rokokwēn as a whole means "rider". It's made of two elements: rokkō, which is "horse" and kwēn which is "person" (from which we get kwendi). So "rider" is in fact "horse person". I took a little license and assumed you can use -kwēn with a verb to mean a person who does that verb. So, sparā is "to hunt", hence sparakwēn, a hunting person, or hunter.Is it possible to combine the element meaning 'rider' with the word meaning 'spirit, shadow' and get 'rokohyoba' or 'hyobaroko'? I think perhaps the latter could sound sufficiently ominous.
Morihyōba (or hyōbamori) works (I think you can compound pretty freely). It means dark/black shadow/spirit, which is pretty menacing. It's a bit tautological, but that hardly matters.Or 'mori hyoba'? But then we lose the 'rider' element.
The bit that means "might" is mbelek-. It comes from the root (M)BELEK and as a distinct Primitive Elvish word, it's (m)beleke, an adjective for mighty, large/great/big. The "(m)" is optional, but including it is the 'strong' form. Since we're talking about something pretty exceptional to the primitive elvish mind, I think we're safe to assume the strong form is preferred here.But going back to the 'Mbelekoro' - would it be possible to use the element meaning 'might' together with either 'spara' (or one of the other elements)?