Where does “ís” come from?

ís (Old Irish) comes from Proto-Celtic ɸīssu, from Proto-Indo-European pedsú, from Proto-Indo-European pṓds, from Proto-Indo-European póds, from Proto-Indo-European ped- — to walk, to step; to stumble, to fall.

ís (Old Irish): under, below, beneath

Definitions

  1. under, below, beneath

Ancestry of “ís”, step by step

ís traces back through 3 separate lines of ancestry.

via Proto-Celtic ɸīssu

StepLanguageWordMeaning
1Proto-Celticɸīssuunder
2Proto-Indo-Europeanpedsú
3Proto-Indo-Europeanpṓdsfoot
4Proto-Indo-Europeanpódsfoot
5Proto-Indo-Europeanped-to walk, to step; to stumble, to fall

via Proto-Celtic esti

StepLanguageWordMeaning
1Proto-Celticestito be
2Proto-Indo-European*h₁ésti

via Proto-Indo-European bʰuH-

StepLanguageWordMeaning
1Proto-Indo-EuropeanbʰuH-to become, grow, appear

Words derived from “ís

Every word from Proto-Indo-European ped-Every word from Proto-Indo-European pódsEvery word from Proto-Indo-European pṓds