[10] Under Thai law, only one family can create any given surname: any two people of the same surname must be related, and it is very rare for two people to share the same full name. Some examples from history are Dhela Bora and Harisingh Bora who were Chutia officials.

Later, after the introduction of the Paik system in the Ahom Kingdom of medieval Assam, the title was re-introduced.

6:39. Roy is a masculine given name and a family surname with varied origin. Originally, the Bora surname was used as a military position/title in the Chutiya Kingdom held by individuals from the Buruk clan. Roy or Rai or Ray is gifted title that is same as everywhere else in India. Assam in Ancestry Message Boards: Assam in Ancestry Family and Local Histories: Distribution of the Assam Surname in UK Assam genealogy mailing list for correspondence and sharing of information pertaining to family histories of the Assam surname and its variations. Or check the index of mailing lists for a sound-alike name. Roy, Ray, rai all are same and denotes that the ancestors of persons using these titles were associated with Jamindari or were connected with princely states in British era. The Assam family name was found in the USA, the UK, Canada, and Scotland between 1891 and 1920. In India, Roy is a variant of the surname Rai, likewise meaning "king". This was about 50% of all the recorded Assam's in the USA. The most Assam families were found in the USA in 1920.

In 1920 there was 1 Assam family living in Massachusetts.

Historical usage. BC Assam kangkan Roy kangkan roy 32 views. In Anglo-Norman England, the name derived from the Norman roy, meaning "king", while its Old French cognate, rey or roy (modern roi), likewise gave rise to Roy as a variant in the Francophone world. The law does not allow one to create any surname that is duplicated with any existing surnames. ভোগালী বিহুৰ সুভেস্বচা ঠাকিল - Duration: 1:05.

Surnames were largely introduced to Thai culture only by the 1913 Surname Act. This list may not reflect recent changes (). Pages in category "Assamese-language surnames" The following 21 pages are in this category, out of 21 total.