Where does “*HwyadʰH-” come from?

*HwyadʰH- (Indo-Iranian) comes from Proto-Indo-European h₁weydʰh₁-, from Proto-Indo-European dwi-, from Proto-Indo-European dwóh₁ — two.

Ancestry of “*HwyadʰH-”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeanh₁weydʰh₁-to separate, divide
2Proto-Indo-Europeandwi-two; apart, asunder
3Proto-Indo-Europeandwóh₁two

Words derived from “*HwyadʰH-

Every word from Proto-Indo-European dwóh₁Every word from Proto-Indo-European dwi-Every word from Proto-Indo-European h₁weydʰh₁-