English

Noun

green-eyed monster ‎(uncountable)

1. (colloquial) Envy, jealousy, covetousness.
   • 1603, William Shakespeare, The Tragedy of Othello, Act 3, scene III, line 165-167 (178–180 in later revision):

     [Iago:] O, beware, my lord, of jealousy;
     It is the green-eyed monster which doth mock
     The meat it feeds on; [...]

   • 1960, P[elham] G[renville] Wodehouse, “chapter XV”, in Jeeves in the Offing, London: Herbert Jenkins, OCLC 1227855:

     The green-eyed monster had bitten [Jeeves]. He was miffed because he wasn't the brains behind this binge, the blue prints for it having been laid down by a rival. Even great men have their weaknesses.

Usage notes

Usually prefaced by "the".