▁did ▁not ▁occur ▁as ▁a ▁separate ▁word - building ▁element ; ▁ ▁was ▁an ▁allo phone ▁of ▁. ▁ ▁V ow els ▁ ▁According ▁to ▁Tol k ien ▁the ▁original ▁Qu ender in ▁v ow els ▁had ▁acquired ▁the ▁following ▁qual ities ▁and ▁system ▁in ▁the ▁Common ▁E ld arin ▁period ▁before ▁it ▁diver ged ▁into ▁the ▁later ▁dialect s , ▁i . e . ▁as ▁it ▁was ▁during ▁the ▁Great ▁March ▁of ▁the ▁E ld ar . ▁ ▁Mon oph th ongs ▁ ▁Common ▁E ld arin ▁had ▁ 1 2 ▁mon oph th ongs ▁: ▁a , ▁e , ▁i , ▁o , ▁u ▁; ▁ ē , ▁ ệ , ▁ ā , ▁ ō , ▁ ộ , ▁ ū . ▁ ▁Di ph th ongs ▁ ▁In ▁Common ▁E ld arin ▁the ▁di ph th ongs ▁could ▁be ▁either ▁primary ▁or ▁secondary . ▁▁ ▁The ▁primary ▁di ph th ongs ▁were ▁two : ▁ai ▁and ▁au . ▁ ▁There ▁were ▁ 8 ▁secondary ▁di ph th ongs : ▁e i , ▁ai , ▁o i , ▁ui ; ▁ou , ▁au , ▁eu , ▁i u . ▁ ▁Red u ced ▁v ow els ▁▁ ▁Common ▁E ld arin ▁had ▁also ▁" redu ced ▁v ow els ": ▁a ▁sch wa ▁ ə ▁and ▁ 5 ▁sy ll ab ic ▁continu ants : ▁ ļ , ▁ <0xC5> <0x97> , ▁ ņ , ▁ ṃ , ▁ ñ . ▁ ▁These ▁were ▁not ▁inherited ▁from ▁Qu ender in