ᴹ√ÑGYAL(AM) root. “talk loud or incoherently”
A root in The Etymologies of the 1930s glossed “talk loud or incoherently”, with derivatives like ᴹQ. indyalme “clamour” and N. glamm “barbarous; shouting, confused noise”, the latter serving as the basis for the collective name for Orcs: N. Glamhoth “Barbaric Host” (Ety/GLAM, ÑGAL); this root replace ᴹ√ÑGAL(AM) or ᴹ√ÑYAL(AM) of similar meaning (Ety/ÑGAL; EtyAC/GLAM). In earlier writings, G. Glamhoth was based on glâm “hatred” (GL/39), but in later writings it continued to be translated as “din-horde” or “host of tumult” (UT/39; MR/109; PE17/39), though in the Quendi and Eldar essay S. glam “din, uproar” was derived directly from √(G)LAM “(vocal) sounds that were confused or inarticulate” (WJ/416).
Neo-Eldarin: For purposes of Neo-Eldarin, I think it is worth retaining this root as a (Quenya only?) elaboration of √(G)LAM to salvage ᴹQ. indyalme “clamour”.
References ✧ Ety/GLAM, ÑGAL; EtyAC/GLAM, ÑGAL