Main Entry: la·pis la·zu·li

Pronunciation: \ˌlap-əs-ˈla-zə-lē, -ˈla-zhə-\

Function: noun

Etymology: Middle English, from Medieval Latin, from Latin lapis + Medieval Latin lazuli, genitive of lazulum lapis lazuli, from Arabic lāzaward — more at azure

Date: 15th century

: a semiprecious stone that is usually rich azure blue and is essentially a complex silicate often with spangles of pyrites —called also lapis