This word represents two Hebrew words. The first may he a general term to denote any bright,sparkling gem, (Isaiah 54:12) the second, (Exodus 28:17; 39:10; Ezekiel 28:13) is supposed to be and smaragdus or emerald.
·noun A charge or bearing supposed to represent the precious stone. It has eight scepters or staves ...
Webster's Dictionary of the English Language
(Ex. 28:17; 39:10; Ezek. 28:13). Heb. barkath; LXX. smaragdos; Vulgate, smaragdus; Revised Version, ...
Easton's Bible Dictionary
A red face, full of pimples. ...
Dictionary of The Vulgar Tongue by Francis Grose