Noldorin 

rhû Archaic

noun. loud sound, trumpet-sound

An archaic noun appearing as N. †rhû “loud sound, trumpet-sound” in The Etymologies of the 1930s, derived from ON. rūma under the root ᴹ√ROM “loud noise, horn-blast” (Ety/ROM), where the ancient *m* became *v* and vanished after *u*. After these sound changes it seems this word was no longer distinct enough, and in modern speech was replaced by rhomru “sound of horns”.

Neo-Sindarin: Since the unvoicing of initial liquids did not occur in Sindarin, many people adapt this word as (still archaic) ᴺS. †rû for purposes of Neo-Sindarin, as suggested in HSD (HSD).

rhû

noun. loud-sound, trumpet-sound

Noldorin [Ety/384, X/RH] Group: SINDICT. Published by

Sindarin 

rhû

matter

n. matter. rhû << rhū. >> rhond, rhonn

Sindarin [(PE17 Sindarin Corpus) PE17:183] < _srōn _ < SRON < RON solid, tangible, firm. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

rhû

noun. matter

A Sindarin word appearing as {hrū &gt;} rhû “matter” in Quenya Notes (QN) from 1957, cognate to Q. hrón “flesh/substance of Arda, matter” and derived from srōn &lt; √SRON, a root variation of √RON “solid, tangible, firm”. In later writings Tolkien revised its Quenya cognate to {orma} &gt; erma (MR/218, 231 note #26, 338, 359 note #14).

Neo-Sindarin: I would retain S. rhû for “matter”, and would assume it was of independent derivation from its Quenya equivalent.

Sindarin [PE17/183] Group: Eldamo. Published by

rhû

evil

adj. evil, wicked. Q. hruo. >> Rhudaur

Sindarin [(PE17 Sindarin Corpus) PE17:115] -. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

rhû

evil

_ adj. _evil, wicked. Q. hrúa, hrúya. >> rhu-, Rhudaur

Sindarin [(PE17 Sindarin Corpus) PE17:170] < S-RŪGU. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

rhû

noun/adjective. evil, wicked

Sindarin [PE17/115; PE17/170] Group: Eldamo. Published by