A word appearing in the Declension of Nouns (DN) of the early 1930s glossed “grass-stem, reed” and derived from the root ᴹ√RĪI̯ as an example of a monosyllabic vocalic noun (PE21/38). In drafts of this section it was glossed only “reed” (PE21/41 note #147).
Quenya
Silmarien
-riën
Silmarien (sometimes "-riën") fem. name, apparently incorporates sil(i)ma (Appendix A) and the feminine ending -ien, or -rien as a variant of -riel (garlanded maiden) as in Altariel (Galadriel).