A Doriathrin word for “Dwarf” derived from the root ᴹ√NAUK- or NAWAK (Ety/NAUK). Tolkien said that it was a diminutive form, not a direct cognate of ᴹQ. nauko or N. naug. It may be derived from a primitive form such as ✱✶naukle, as suggested by Helge Fauskanger (AL-Doriathrin/naugol), though there isn’t enough evidence to determine the original final vowel, since primitive final vowels vanished in Ilkorin. The final -ol appeared because [[ilk|[o] developed between a consonant and final [l]]] in Ilkorin.
Its genitive form naugla appears as an element in Dor. Nauglamír “Necklace of the Dwarves” (Ety/NAUK).
A Doriathrin noun meaning “oak” derived from the primitive form ᴹ✶dóron[o] (Ety/DÓRON). The accent mark in the root indicated that the first syllable was stressed, thereby preventing the [[ilk|initial [dor-] from becoming [dr-]]]. The second [o] was lost, however, due to the Ilkorin syncope.