Where does “गवाक्ष” come from?

गवाक्ष (Sanskrit) comes from Sanskrit अक्षि, from Proto-Indo-Aryan Hákṣi, from Proto-Indo-Iranian Hákši, from Proto-Indo-European h₃ókʷih₁, from Proto-Indo-European h₃ókʷs, from Proto-Indo-European h₃ekʷ- — to see; eye.

Ancestry of “गवाक्ष”, step by step

गवाक्ष traces back through two separate lines of ancestry.

via Sanskrit अक्षि

StepLanguageWordMeaning
1Sanskritअक्षिeye; the number two; the sun and moon
2Proto-Indo-AryanHákṣi—
3Proto-Indo-IranianHákšieye
4Proto-Indo-Europeanh₃ókʷih₁nominative/vocative/accusative dual of *h₃ókʷs
5Proto-Indo-Europeanh₃ókʷseye
6Proto-Indo-Europeanh₃ekʷ-to see; eye

via Sanskrit गो

StepLanguageWordMeaning
1Sanskritगोa cow; an ox; cattle, kine, herd of cattle
2Proto-Indo-Iraniangāuš—
3Proto-Iraniangā́wšcow
4Proto-Indo-Iraniangā́wšcow
5Proto-Indo-Europeangʷṓwscattle
Every word from Proto-Indo-European h₃ekʷ- →Every word from Proto-Indo-European h₃ókʷs →Every word from Proto-Indo-European h₃ókʷih₁ →