Main Entry: marl

Pronunciation: \ˈmär(-ə)l\

Function: noun

Etymology: Middle English, from Anglo-French marle, from Medieval Latin margila, diminutive of Latin marga marl, from Gaulish

Date: 14th century

: a loose or crumbling earthy deposit (as of sand, silt, or clay) that contains a substantial amount of calcium carbonate

— marly \ˈmär-lē\ adjective