Webster's English Dictionary

Enter the word to look up:

emerald

1. em.er.ald \'em-(*-)r*ld\ n [ME emerallde, fr. MF esmeralde, fr. 
   (assumed) VL smaralda, f]r. L smaragdus, fr. Gk smaragdos 1: a rich green 
   variety of beryl prized as a gemstone  2: any of various green gemstones 
   (as synthetic corundum or demantoid) 
2. emerald aj : brightly or richly green