"So, king of Egypt," is once mentioned in the Bible- (2 Kings 17:4) So has been identified by different writers with the first and second kings of the Ethiopian twenty-fifth dynasty, called by Manetho, Sabakon (Shebek) and Sebichos (Shebetek).
SO
Meaning of SO in English
Smith's Bible English dictionary. Английский библейский словарь Смита. 2012