Where does “eau souterraine” come from?

eau souterraine (French) comes from French EAU, from Middle French eau, from Old French ewe, from Latin aqua, from Proto-Italic akʷā, from Proto-Indo-European h₂ekʷeh₂ — water, flowing water.

eau souterraine (French): groundwater

Definitions

  1. groundwater

Ancestry of “eau souterraine”, step by step

eau souterraine traces back through two separate lines of ancestry.

via French EAU

StepLanguageWordMeaning
1FrenchEAUwater, a liquid that is transparent, colorless, odorless and tasteless in its pure form, the primary constituent of lakes, rivers, seas and oceans
2Middle Frencheauwater
3Old Frenchewewater
4Latinaquawater
5Proto-Italicakʷāwater
6Proto-Indo-Europeanh₂ekʷeh₂water, flowing water

via French [[souterrain]]e

StepLanguageWordMeaning
1French[[souterrain]]e
Every word from Proto-Indo-European h₂ekʷeh₂