Where Pol Pot got his name

Several people have wondered where Pol Pot got his name it was originally Saloth Sar, until shortly before the Communist Party of Kampuchea came to power in 1975.
According to From Wikipedia, the free encyclopedia:


Saloth Sar (May 19, 1925–April 16, 1998), better known as Pol Pot (short for Politique Potentielle, French for "potential politic"), was the ruler of the Khmer Rouge and the Prime Minister of Cambodia (officially Democratic Kampuchea during his rule) from 1976 to 1979, having been de facto leader since mid-1975.

WRONG - according to Philip Short, author of Pol Pot, The name was taken from a group of aborigine type people captured and enslaved by the Ancient Khmer Kings. Pol hated kings, so naming himself after the kings slaves made a lot of sense. His main enemy in life had always been the monarchy in Phnom Penh, which was dominated by Norodom Sihanouk. The name Pot came from an old Khmer tradition of people without a second name simply taking a one syllable name that sounded similar to the first name, for example, someone named Yen might add Yat and be known as Yen Yat.
The obvious clue that Wikipedia is wrong comes from the idea that Sar would take a French name, when his movement spoke and wrote only in Khmer and rejected all foreign influence including foreign languages.