Where does “duonfilino” come from?

duonfilino (Esperanto) comes from Esperanto duonfilo, 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.

duonfilino (Esperanto): stepdaughter

Definitions

stepdaughter

Ancestry of “duonfilino”, step by step

Step	Language	Word	Meaning
1	Esperanto	duonfilo	stepson
2	Esperanto	filo	son; offspring
3	Latin	fīlius	a son
4	Old Latin	fīlios	—
5	Proto-Indo-European	dʰeh₁y-li-os	sucker
6	Proto-Indo-European	dʰeh₁(y)-	to suckle, nurse

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