Just to reaffirm that I am Thai and am 100% certain of the rules....
With regard to the name 'MAK' = board game 'ROOK' = attack
The spellin is coincidental...
Also, 'KHUN' means the chief, head, principal etc. It is used to
refer
to the king but to use the actual word 'king' as a playing piece was
against Thai culture.
As for 'KHON' (pronounced like Cone) it is definitely NOT the form of
drama (different pronuciation & spelling in Thai) but nobody know the
origin. Some authorities suggested it derived from 'KON'
(short-vowel)
meaning human.