Where does “[[aṅsa]], [[haṅsa]]” come from?

[[aṅsa]], [[haṅsa]] (Old Javanese) comes from Sanskrit हंस, from Proto-Indo-Aryan źʰansás, from Proto-Indo-Iranian ȷ́ʰansás, from Proto-Indo-European ǵʰh₂éns — goose.

Ancestry of “[[aṅsa]], [[haṅsa]]”, step by step

StepLanguageWordMeaning
1Sanskritहंसa goose, gander, swan, flamingo; sometimes a mere...
2Proto-Indo-Aryanźʰansásgoose, swan
3Proto-Indo-Iranianȷ́ʰansásgoose, swan
4Proto-Indo-Europeanǵʰh₂énsgoose
Every word from Proto-Indo-European ǵʰh₂éns →Every word from Proto-Indo-Iranian ȷ́ʰansás →Every word from Proto-Indo-Aryan źʰansás →