Where does “устьичный” come from?

устьичный (Russian) comes from Russian устьице, from Russian у́стье, from Proto-Slavic ustьje, from Proto-Slavic ustà, from Proto-Indo-European h₃éh₁os — mouth.

устьичный (Russian): stomatal

Definitions

  1. stomatal

Ancestry of “устьичный”, step by step

StepLanguageWordMeaning
1Russianустьицеstoma
2Russianу́стьеmouth, outflow, discharge, issue
3Proto-Slavicustьjemouth, rivermouth
4Proto-Slavicustàlips, mouth
5Proto-Indo-Europeanh₃éh₁osmouth
Every word from Proto-Indo-European h₃éh₁os →Every word from Proto-Slavic ustà →Every word from Proto-Slavic ustьje →