Webster's Revised Unabridged Dictionary · 1913

Rez-de-chaussée

Rez-de-chaussée , noun

[French, lit., level of the street. See Raze, transitive verb, and Causey.]

(Architecture) The ground story of a building, either on a level with the street or raised slightly above it; -- said esp. of buildings on the continent of Europe.
Tier above tier of neat apartments rise over the little shops which form the rez-de-chaussée. — The Century

Also: Rez-de-chaussee