Etymology

From บรม ‎(brom, “great; supreme; utmost; etc”) +‎ ราชาธิราช ‎(“king of kings”); ultimately from Sanskrit परम ‎(parama, “absolute; supreme; utmost; etc”) + राजाधिराज ‎(rājādhirāja, “king of kings”), probably via Old Khmer paramarājādhirāja, pūrammarājjādhirāja ‎(“supreme overlord of kings”). Compare Modern Khmer បរមរាជាធិរាជ ‎(bârômréachéathĭréach).

Historian Sujit Wongthes (สุจิตต์ วงษ์เทศ) suggested that the term was created after the legendary leader Borom.^[1]

Pronunciation