Where does “காலமாகு” come from?

காலமாகு (Tamil) comes from Tamil காலம், from Sanskrit काल, from Proto-Turkic kār, from Proto-Iranian karah — fold, of time (during which an action or event happens).

Ancestry of “காலமாகு”, step by step

காலமாகு traces back through two separate lines of ancestry.

via Tamil காலம்

Step	Language	Word	Meaning
1	Tamil	காலம்	time
2	Sanskrit	काल	black, dark blue; black, dark blue colour; pupil
3	Proto-Turkic	kār	snow
4	Proto-Iranian	karah	fold, of time (during which an action or event happens)

via Tamil ஆகு

Step	Language	Word	Meaning
1	Tamil	ஆகு	—
2	Proto-Dravidian	*ā-k-	—

Every word from Proto-Iranian karah →Every word from Proto-Turkic kār →Every word from Sanskrit काल →