▁constructed ▁language ▁in ▁the ▁proper ▁sense , ▁as ▁Tol k ien ▁didn ' t ▁elaborate ▁on ▁its ▁voc ab ul ary ▁or ▁grammar , ▁but ▁merely ▁a ▁chron ological ▁stage ▁of ▁the ▁Prim itive ▁Qu end ian . ▁Common ▁E ld arin ▁is ▁mentioned ▁mainly ▁in ▁the ▁context ▁of ▁a ▁set ▁of ▁ph on ological ▁rules ▁and ▁evolution ary ▁stages ▁of ▁the ▁El v ish ▁languages ▁between ▁Prim itive ▁Qu end ian ▁and ▁the ▁later ▁languages . ▁Although ▁virt ually ▁all ▁Prim itive ▁Qu end ian ▁forms ▁can ▁be ▁re construct ed ▁as ▁Common ▁E ld arin , ▁there ▁is ▁no ▁particular ▁Common ▁E ld arin ▁phil ology . ▁ ▁Cons on ants ▁▁ ▁The ▁following ▁table ▁shows ▁the ▁con son ant ▁ph on emes ▁found ▁in ▁Common ▁E ld arin ▁according ▁to ▁the ▁" Out line ▁of ▁Ph on ology ". ▁The ▁Qu en ya ▁lingu istic ▁terms ▁are ▁taken ▁from ▁another ▁work ▁by ▁Tol k ien : ▁" The ▁T eng w esta ▁Q ender in wa ". ▁These ▁were ▁invent ed , ▁according ▁to ▁Tol k ien , ▁by ▁the ▁El f ▁R ú mil . ▁ ▁The ▁spir ant ▁s ▁was ▁naturally ▁vo ic eless ▁in ▁Common ▁E ld arin , ▁and ▁t ended ▁to ▁un voice ▁preceding ▁con son ants , ▁including ▁nas als . ▁It ▁was ▁vo iced ▁to ▁ ▁before ▁the ▁vo iced ▁con son ants : ▁b , ▁d , ▁g , ▁m , ▁n . ▁This ▁vo icing ▁was ▁merely ▁context ual ▁and ▁z