prase
noun
ˈprāz 
ˈprās
ˈprās : a chalcedony that is translucent and yellowish green
Word History
Etymology
French, from Middle French prasse, Latin prasius, from Greek prasios, from prasios, adjective, of the color of a leek, from prason leek; akin to Latin porrum leek
First Known Use
1788, in the meaning defined above