A rejected noun meaning “rustle, noise of leaves” derived from the root ᴹ√EZGE (Ety/EZGE). Its (rejected) Quenya cognate ᴹQ. eske indicates a primitive form ✶eseke*, despite the root form. If so, middle [e] was lost due to the Ilkorin syncope, and afterwards the [[ilk|[esk] became [esg]]].
esg²noun. rustle, noise of leaves
esg¹noun. sedge, reed