Where does “fiz” come from?

fiz (French) comes from Latin filius, from Old Latin filios, from Proto-Italic feiljos, from Proto-Indo-European dʰeh₁ylios, from Proto-Indo-European dʰeh₁(y)- — to suckle, nurse.

Ancestry of “fiz”, step by step

StepLanguageWordMeaning
1Latinfiliusa son; any male descendant; children
2Old Latinfiliosson; accusative plural of fīlius
3Proto-Italicfeiljosson
4Proto-Indo-Europeandʰeh₁yliossucker
5Proto-Indo-Europeandʰeh₁(y)-to suckle, nurse
Every word from Proto-Indo-European dʰeh₁(y)-Every word from Proto-Indo-European dʰeh₁yliosEvery word from Proto-Italic feiljos