Where does “பிரக்யா” come from?

பிரக்யா (Tamil) comes from Sanskrit प्रज्ञा, from Sanskrit ज्ञा, from Proto-Indo-Aryan ȷ́naH-, from Proto-Indo-Iranian ǰnaH-, from Proto-Indo-European ǵneh₃- — to know.

Ancestry of “பிரக்யா”, step by step

Step	Language	Word	Meaning
1	Sanskrit	प्रज्ञा	feminine singular nominative of प्रज्ञ; wisdom,...
2	Sanskrit	ज्ञा	to know
3	Proto-Indo-Aryan	ȷ́naH-	—
4	Proto-Indo-Iranian	ǰnaH-	—
5	Proto-Indo-European	ǵneh₃-	to know

Every word from Proto-Indo-European ǵneh₃- →Every word from Proto-Indo-Iranian ǰnaH- →Every word from Proto-Indo-Aryan ȷ́naH- →