Where does “si” come from?

si (Central Franconian) comes from Middle High German sīn, from Old High German sīn, from Proto-West Germanic sinn, from Proto-Germanic sinnaz, from Proto-Indo-European sentnós, from Proto-Indo-European sent-, from Proto-Indo-European h₁es- — to be.

si (Central Franconian): his, its third-person masculine and neuter possessive

Definitions

  1. his, its third-person masculine and neuter possessive

Ancestry of “si”, step by step

StepLanguageWordMeaning
1Middle High Germansīnto be, become
2Old High Germansīnhis; to be
3Proto-West Germanicsinnsense, perception; sense, meaning; reason, mental...
4Proto-Germanicsinnazsense, perception; sense, meaning
5Proto-Indo-Europeansentnós
6Proto-Indo-Europeansent-to head for, to go, to travel; to feel
7Proto-Indo-Europeanh₁es-to be
Every word from Proto-Indo-European h₁es-Every word from Proto-Indo-European sent-Every word from Proto-Indo-European sentnós