Where does “Dikē” come from?

Dikē (English) comes from Ancient Greek Δίκη, from Proto-Indo-European deyḱ- — to point out.

Ancestry of “Dikē”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Δίκη	—
2	Proto-Indo-European	deyḱ-	to point out

Dikē — Etymology, Origin & Word History | Etymology Explorer