A word for “fireplace, hearth” in 1964 notes on Dalath Dirnen (DD) derived from the root √RUYU “blaze, red” (PE17/183).
Conceptual Development: Earlier fireplace words from the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s include ᴱQ. arin “hearth” derived from the early root ᴱ√ARA “be dry” (QL/32; PME/32) and ᴱQ. purin (purind-) “hearth” derived from the early root ᴱ√PUŘU [PUÐU] “consume by fire” (QL/76; PME/76).
ruimen noun "fireplace, hearth" (PE17:183)