On Two Unknown Words Yadegar and Send in Shahnameh

In spite of all efforts over the past decades in describing and tackling the ploblems of Shahnameh, there exist still verses, whose exact meaning are not clear because of ambiguous words and combinations. Among them, a specific application of the word "Yadgar (یادگار)", and "send (سند)" that is used at least three times in Shahnameh but it does not appear that Ferdowsi, in all cases, wanted the same meaning recorded in lexicons. The study explores this problem with the help of two ancient Arabic texts containing the word "Yadgar" in its ancient forms "Ayazkar/Ayadkar". It was concluded that this word means "scroll", just as it means in local dialect of Fars, as one of the scholars has mentioned ago. The word "Send" (adopted son), used also in one of the ancient translations of the Qur'an, refers to a person who is called by his kinship to someone, without being really of his generation.