Where does “zwei” come from?

zwei (Alemannic German) comes from Middle High German zwei, from Old High German zwei, from Proto-Germanic twai, from Proto-Indo-European dwóh₁ — two.

zwei (Alemannic German): two

Definitions

Ancestry of “zwei”, step by step

Step	Language	Word	Meaning
1	Middle High German	zwei	—
2	Old High German	zwei	—
3	Proto-Germanic	twai	two
4	Proto-Indo-European	dwóh₁	two

Words derived from “zwei”

Zweier

Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Germanic twai →Every word from Old High German zwei →