The relationship between the Arabic and Persian languages indifferent domains has existed from centuries before Islam, and continued until the current era. Example, we can refer to the transition of Quranic and Arabic words into the Persian language. In order to understand the meanings of these words we need to extensively study the lexical meanings of the words in different centuries on the basis of time and place. Tarikh beihaghi is one of the main books which has remained from the fifth century before the invastion of "moghol". Beihaghi made use of Arabic words, both the original and the non-original meanings in
his writings. Sometimes, by adding some letter and signs to the words he changed the form or the meaning of these words. Beihaghi lived a long life and started writing his book in the late years of his lifel; therefore he made use of Arabic words...
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