A word appearing as N. rhenn “circular” in The Etymologies of the 1930s under the root ᴹ√RIN (Ety/RIN; EtyAC/RIN). In The Etymologies as published in The Lost Road this word was given as rhinn “circular” (LR/383), but this was corrected to rhenn by Carl Hostetter and Patrick Wynne in their Addenda and Corrigenda to the Etymologies (VT46/11).

Neo-Sindarin: Many Neo-Sindarin writers adapt this word as ᴺS. rend “circular” for purposes of Neo-Sindarin as suggested in Hiswelókë’s Sindarin Dictionary (HSD), since the unvoicing of initial r to rh was a feature of Noldorin of the 1930s but not Sindarin of the 1950s and 60s. The final d is in keeping with the notion that “nd remained at the end of fully accented monosyllables” in Sindarin (LotR/1115).