A word for a type of hill, a “round head, knoll”, appearing in The Etymologies of the 1930s as a derivative of ᴹ√NDOL (Ety/NDOL).
Conceptual Development: This word was mentioned quite frequently in Tolkien’s early writings, appearing as ᴱQ. nōla “head, hill” in the Qenya Lexicon of the 1910s derived from ᴱ√NOHO “extended” (QL/67), and appearing in many word lists from the 1910s through early 1930s with glosses like “round hill” (PME/67), “head, summit” (PE15/73), “top (only used of mountains etc.)” (PE15/78), or “summit, round hilltop, head” (PE21/8). In the English-Qenya Dictionary of the 1920s Tolkien clarified that it “is not used of human head except colloquially” (PE15/73). Tolkien’s ongoing use of its cognate S. dol(l) “head, hill” in later writings indicates is ongoing validity.
Neo-Quenya: For purposes of Neo-Quenya, I would limit this word to round hills and knolls and not use it for mountain tops.