Where does “-i” come from?

-i (Ido) comes from Italian -i, from Latin -i, from Latin -ēs, from Proto-Indo-European h₁éy- — he, this.

-i (Ido): -s

Definitions

  1. -s

Ancestry of “-i”, step by step

StepLanguageWordMeaning
1Italian-iUsed with a stem to form the second-person...
2Latin-inominative/vocative masculine plural of -us;...
3Latin-ēsfirst conjugation
4Proto-Indo-Europeanh₁éy-he, this

Words derived from “-i”

Every word from Proto-Indo-European h₁éy- →Every word from Latin -ēs →Every word from Italian -i →