adjective/su.tɛ.ʁɛ̃/
underground
Related: économie souterraine
Etymology tree
Proto-Indo-European *upó
Proto-Italic *supo
Latin sub
Old French sus-
French sou-
Proto-Indo-European *ters-
Proto-Indo-European *tersos
Proto-Italic *terzos
Proto-Indo-European *-nós
Proto-Italic *-nos
Proto-Italic *terzeznos
Latin terrēnum
Vulgar Latin *terranum
Old French terrain
French terrain
French souterrain
From sou- + terrain, based on the model of Latin subterraneus.
noun, masculine/su.tɛ.ʁɛ̃/plural: souterrains
underground passage, tunnel
Etymology tree
Proto-Indo-European *upó
Proto-Italic *supo
Latin sub
Old French sus-
French sou-
Proto-Indo-European *ters-
Proto-Indo-European *tersos
Proto-Italic *terzos
Proto-Indo-European *-nós
Proto-Italic *-nos
Proto-Italic *terzeznos
Latin terrēnum
Vulgar Latin *terranum
Old French terrain
French terrain
French souterrain
From sou- + terrain, based on the model of Latin subterraneus.