ᴹ√GLAM root. “inarticulate voiced sounds”
A (Noldorin-only) root in The Etymologies of the 1930s glossed “inarticulate voiced sounds”, a strengthened form of the root ᴹ√LAM which was the basis of general sound words (Ety/GLAM). The derivatives of ᴹ√GLAM include N. glamm “shouting, confused noise” and N. glavra- “babble” but also N. glamor “echo” and N. glamren “echoing”, the last of these seen in N. Dorlamren, the pure Noldorin form of N. Dor-lómen “Land of Echoes”, which incorporates the Ilkorin word lómen “echoing” (LR/249; Ety/LAM).
The word S. glam “din, uproar, the confused yelling and bellowing of beasts” reappeared in the Quendi and Eldar essay written in 1959-60, where it was an element (as it was earlier) in the collective name for orcs: S. Glamhoth “Din-horde” (WJ/391). This strongly indicates that the “confused sounds” aspect of this root survived into Tolkien’s later conception of the language. However, the “echo” portion seemed to have been transferred to the unstrengthened form of this root √LAM as with (West) Sindarin loven “echoing” vs. North Sindarin lómin, which remained an element in Dor-lómin “Land of Echoes”, albiet reconceived of as a North Sindarin name (PE17/133).
References ✧ Ety/GLAM, LAM, ÑGAL; EtyAC/GLAM