ᴱ√RU’U root. “‽”
An unglossed root in the Qenya Lexicon of the 1910s, probably actually *ᴱ√RUƷU, with derivatives like ᴱQ. rú “dwelling, village, hamlet”, ᴱQ. rue “rest, stillness, remaining, steadfastness”, and ᴱQ. ruin “peace” (QL/80). There were a number of likely-related words in the contemporaneous Gnomish Lexicon such as G. rô “enduring, long suffering; quiet, gentle, docile”, G. rû “dwelling, house”, and G. rûtha- “dwell, remain”, though Tolkien seems to have rejected the Gnomish forms beginning with rô- (GL/66). There are no signs of this root in Tolkien’s later writing, but I think it is worth positing a Neo-Root ᴺ√RUH “*still” to preserve some of these early words.
Reference ✧ QL/80 ✧ “‽”