Bible dictionaries
President
What Bible dictionaries say about “President”, one article after the other.
International Standard Bible Encyclopedia (ISBE 1915)
prez'-i-dent (carakh): Used only in Da 6:2-7. Probably a Persian derivative from sar, "head," and the Aramaic equivalent for Hebrew shoter. The meaning is self-evident and refers to the appointment of Daniel by Darius to be one of the three princes who had rule over the satraps of the empire.
International Standard Bible Encyclopedia — James Orr, general editor and contributors; CrossWire SWORD module ISBE 2.2
The article in ISBE 1915Smith’s Bible Dictionary
(sarac or sareca , only used (Daniel 6:1) ... the Chaldee equivalent for Hebrew shter , probably from sara , Zend. a "head"), a high officer in the Persian court, a chief, a president, used of the three highest ministers.
William Smith; revised by F. N. Peloubet and M. A. Peloubet; CrossWire SWORD module Smith 1.3
The article in Smith