In this paper the author compares the word "sayin" in Mongolic language group with "sağ" in Turkic language group focusing on whether they have a close relationship in lexical meaning and phonetic form and lists some sayin-rooted words in Mongolic language group, such as sayin, sayitur, sayid, sayiǰiraqu ... and sağ rooted words in Turkic language group, such as sağ, sağlık, sağol, sağalmak .... Lastly they are viewed as common word of Mongolic and Turkic.