A noun in the Gnomish Lexicon of the 1910s appearing as G. eglin or egli “needle” based on G. eg “point” (GL/32).
Neo-Sindarin: The root √EK “sharp point” survived in Tolkien’s later writings (WJ/365), so I’d retain ᴺS. eglin “needle” for purposes of Neo-Sindarin.
nelma noun "needle" (QL:65)