الواحد
كلمة (الواحد) في اللغة لها معنيان، أحدهما: أول العدد، والثاني:...
Water that has been altered in some or all of its properties because of remaining stagnant without having mixed with another material that might have altered it.
"Ājin" (stale water) is water that has been altered in some or all of its properties, like having an stinky smell or turning green in color because of remaining stagnant in one place, but without being mixed with any external material. It is considered pure water.
"Ājin": water that has been altered in taste and color because of being old or stagnant; however, it is still portable.