Here is what illiyeen (i think this is the same as what you are talking about) is as said in Chapter 83 verse 8-28:
"Nay! Most surely the record of the righteous shall be in the Illiyyeen. And what will make you know what the highest Illiyyeen is? It is a written book, Those who are drawn near (to Allah) shall witness it. Most surely the righteous shall be in bliss, On thrones, they shall gaze; You will recognize in their faces the brightness of bliss. They are made to quaff of a pure drink that is sealed (to others). The sealing of it is (with) musk; and for that let the aspirers aspire. And the admixture of it is a water of Tasnim, A fountain from which drink they who are drawn near (to Allah)."
So basically it is a great book (said to be in the 7th Heaven) where righteous people's records are written
Eileen means 'pleasant'
From the Greek form "Helen", the Irish name Eileen means "sunlight".
Islam=Peace
Eileen Heckart's birth name is Anna Eileen Stark.
the power of Islam
it mean long live islam
Mayal in Islam means penchant.
Islam is the same word in Latin as it is in English.
Eileen Fisher
Eileen Spinelli's maiden name is Eileen McNamara.
The Eileen sat on the Eileen.
Islam is not a language but it's a religion. if you mean the Arabic language which is very associated to Islam then the letter you want is " أ ".I believe you mean "Alif" or "'Ayn" in Arabic since Islam isn't a language.