Where does “การล้างสมอง” come from?

การล้างสมอง (Thai) comes from Thai การ, from Pali kāra, from Sanskrit कार, from Sanskrit कृ, from Proto-Indo-European kʷer- — to do; to make; to build.

Ancestry of “การล้างสมอง”, step by step

การล้างสมอง traces back through two separate lines of ancestry.

via Thai การ

Step	Language	Word	Meaning
1	Thai	การ	work; matter; task; affair; prefixed to nouns to...
2	Pali	kāra	deed; doing, manner; production, application
3	Sanskrit	कार	gain, prize, booty; contest, war; an act, action
4	Sanskrit	कृ	to make
5	Proto-Indo-European	kʷer-	to do; to make; to build

via Thai ล้างสมอง

Step	Language	Word	Meaning
1	Thai	ล้างสมอง	to brainwash
2	English	brainwash	A distorting effect upon one's memory, belief, or...
3	Chinese	洗腦	to brainwash; composed in a silly manner but is...

Every word from Proto-Indo-European kʷer- →Every word from Sanskrit कृ →Every word from Sanskrit कार →