brownstone
verbEtymology From brown + stone.
1
Historical To scour (steps) with a donkey stone.
noun, verb — 3 senses
US /ˈbɹaʊnˌstoʊn/
Etymology From brown + stone.
A variety of brown to red-brown sandstone once popular as a building material.
A row house built of brownstone, especially in New York City.
Etymology From brown + stone.
Historical To scour (steps) with a donkey stone.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.