Green with envy

Where does that phrase come from? Here's where:

Judith S. Neaman and Carole G. Silver report that 'green' and 'pale' were alternate meanings of the same Greek word. In the seventh century B.C., the poetess Sappho, used the word 'green' to describe the complexion of a stricken lover. The Greeks believed that jealousy was accompanied by an overproduction of bile, lending a pallid green cast to the victim.