Where does “चक्षु” come from?

चक्षु (Hindi) comes from Sanskrit चक्षु, from Proto-Indo-Iranian čákšuš, from Proto-Indo-European kʷékʷḱus, from Proto-Indo-European kʷeḱ- — to see; to look.

चक्षु (Hindi): eye

Definitions

Ancestry of “चक्षु”, step by step

Step	Language	Word	Meaning
1	Sanskrit	चक्षु	eye; name of a prince; the Oxus river
2	Proto-Indo-Iranian	čákšuš	the eye
3	Proto-Indo-European	kʷékʷḱus	—
4	Proto-Indo-European	kʷeḱ-	to see; to look

Words derived from “चक्षु”

चक्षुदान

Every word from Proto-Indo-European kʷeḱ- →Every word from Proto-Indo-European kʷékʷḱus →Every word from Proto-Indo-Iranian čákšuš →