The Collaborative International Dictionary of English v.0.48:
Jealousy \Jeal"ous*y\, n.; pl. Jealousies. [ F. jalousie. See
Jealous, and cf. Jalousie.]
The quality of being jealous; earnest concern or solicitude;
painful apprehension of rivalship in cases directly affecting
one's happiness; painful suspicion of the faithfulness of
husband, wife, or lover.
I was jealous for jealousy. --Zech. viii.
Jealousy is the . . . apprehension of superiority.
Whoever had qualities to alarm our jealousy, had
excellence to deserve our fondness. --Rambler.