Where does “twain” come from?

Twain comes from Middle English twayne, from Middle English twaynen, from Proto-Germanic twai, from Proto-Indo-European dwóh₁.

twain (English): two; twofold; pair, couple

Definitions

  1. two; twofold; pair, couple

Ancestry of “twain”, step by step

twain traces back through 3 separate lines of ancestry.

via Middle English tweyne

StepLanguageWordMeaning
1Middle Englishtweynetwo
2Old Englishtwēġentwo; twain
3Proto-West Germanictwai-two
4Proto-Germanictwaitwo
5Proto-Indo-Europeandwóh₁two

via Middle English tweien

StepLanguageWordMeaning
1Middle Englishtweien—

via Middle English twaine

StepLanguageWordMeaning
1Middle Englishtwaine—
Every word from Proto-Indo-European dwóh₁ →