ᴹ√LIR² root. “*row”
An unglossed root in The Etymologies of the 1930s server as the basis for N. lhîr “row” in N. oeglir “range of mountain peaks” (Ety/LIR²). Tolkien’s continued use of aeglir in his later writings (in Hithaeglir “Misty Mountains; Line of Misty Peaks”) indicates its ongoing validity (Let/180; RC/11).
Reference ✧ Ety/LIR²