■ adjective
1》 envious of someone else's possessions, achievements, or advantages.
↘suspicious or resentful of a perceived sexual rival.
2》 fiercely protective or vigilant of one's rights or possessions.
3》 (of God) demanding faithfulness and exclusive worship.
Derivatives
~ly adverb
~y noun ( plural ~ies ).
Origin
ME: from OFr. gelos , from med. L. zelosus (see zealous ).