Where does “duonfrato” come from?

duonfrato (Esperanto) comes from Esperanto duono, from Esperanto du, from French deux, from Middle French deux, from Old French deux.

duonfrato (Esperanto): half brother

Definitions

  1. half brother

Ancestry of “duonfrato”, step by step

duonfrato traces back through two separate lines of ancestry.

via Esperanto duono

StepLanguageWordMeaning
1Esperantoduonohalf
2Esperantodutwo
3Frenchdeuxtwo; twos
4Middle Frenchdeuxtwo
5Old Frenchdeux—

via Esperanto frato

StepLanguageWordMeaning
1Esperantofratobrother; sibling
2Latinfrāterbrother
3Proto-Italicfrātērbrother
4Proto-Indo-Europeanbʰréh₂tērbrother
Every word from Old French deux →Every word from Middle French deux →Every word from French deux →