Where does “wā́kṣ” come from?

wā́kṣ (Proto-Indo-Aryan) comes from Proto-Indo-Iranian wā́kš, from Proto-Indo-European wṓkʷs, from Proto-Indo-European wekʷ- — to speak, to sound out.

Ancestry of “wā́kṣ”, step by step

StepLanguageWordMeaning
1Proto-Indo-Iranianwā́kšspeech, voice; sound?
2Proto-Indo-Europeanwṓkʷsvoice, speech
3Proto-Indo-Europeanwekʷ-to speak, to sound out
Every word from Proto-Indo-European wekʷ- →Every word from Proto-Indo-European wṓkʷs →Every word from Proto-Indo-Iranian wā́kš →