Where does “duonfilo” come from?

duonfilo (Esperanto) comes from Esperanto filo, from Latin fīlius, from Old Latin fīlios, from Proto-Indo-European dʰeh₁y-li-os, from Proto-Indo-European dʰeh₁(y)- — to suckle, nurse.

duonfilo (Esperanto): stepson

Definitions

  1. stepson

Ancestry of “duonfilo”, step by step

duonfilo traces back through two separate lines of ancestry.

via Esperanto filo

StepLanguageWordMeaning
1Esperantofiloson; offspring
2Latinfīliusa son
3Old Latinfīlios
4Proto-Indo-Europeandʰeh₁y-li-ossucker
5Proto-Indo-Europeandʰeh₁(y)-to suckle, nurse

via Esperanto duono

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

Words derived from “duonfilo

Every word from Proto-Indo-European dʰeh₁(y)-Every word from Proto-Indo-European dʰeh₁y-li-osEvery word from Old Latin fīlios