An adjective meaning “stiff, hard” derived from primitive ᴹ✶starāna (Ety/STARAN). First the unstressed vowel in the first syllable vanished to produce the favored combination [tr], after which the [[ilk|initial [s] spirantalized the following [t] to [θ] (“th”)]], while the [[ilk|long [ā] became [ō]]]. All these developments were suggested by Helge Fauskanger (AL-Ilkorin/thrôn).
Doriathrin
dorn
noun. oak
thrôn
adjective. stiff, hard
targ
adjective. tough, stiffAn adjective meaning “tough, stiff” derived from primitive ᴹ✶targā after primitive final vowels vanished (Ety/TÁRAG).
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.