ᴹ√DING root. “ding (onomatopoeic)”
An onomatopoeic root in The Etymologies of the 1930s serving principally as an element in the Ilkorin name Ilk. Belthronding (Ety/DING). Given the appearance of this name in later versions of The Silmarillion, it likely transferred to Sindarin.
References ✧ Ety/BEL, DING, STARAN, TING; EtyAC/DING