Where does “ปฏิปักษ์” come from?

ปฏิปักษ์ (Thai) comes from Thai ปักษ์, from Sanskrit पक्ष, from Proto-Indo-Iranian pakšás, from Proto-Indo-European peg-só-s, from Proto-Indo-European peg-, from English polyethylene glycol — Any of a series of water-soluble polymers, of...

ปฏิปักษ์ (Thai): antagonist, adversary

Definitions

antagonist, adversary

Ancestry of “ปฏิปักษ์”, step by step

ปฏิปักษ์ traces back through two separate lines of ancestry.

via Thai ปักษ์

Step	Language	Word	Meaning
1	Thai	ปักษ์	fortnight
2	Sanskrit	पक्ष	wing, pinion; symbol; name of the number two
3	Proto-Indo-Iranian	pakšás	—
4	Proto-Indo-European	peg-só-s	—
5	Proto-Indo-European	peg-	breast
6	English	polyethylene glycol	Any of a series of water-soluble polymers, of...

via Thai ปฏิ

Step	Language	Word	Meaning
1	Thai	ปฏิ	anti-; counter
2	Pali	paṭi-	Verbal prefix
3	Sanskrit	प्रति-	around, upon
4	Proto-Indo-European	per-	before, in front; first; to go through
5	Proto-Indo-European	pr̥tós	passed , crossed

Every word from English polyethylene glycol →