From Middle English jelous, gelous, gelus, from Old French jalous, from Late Latin zelosus, from Ancient Greek ζῆλος (zêlos, “zeal, jealousy”), from ζηλόω (zēlóō, “to emulate, to be jealous”). Cognate with zeal, zealous.
jealous (comparative jealouser or more jealous, superlative jealousest or most jealous)
- Suspecting rivalry in love; troubled by worries that one might have been replaced in someone's affections; suspicious of a lover or spouse's fidelity. [from 13th c.]
- Protective, zealously guarding, careful in the protection of something one has or appreciates. [from 14th c.]
- For you must not worship any other god, for the Lord, whose name is Jehovah, is a jealous God. —Exodus 34:14 (NET)
- Envious; feeling resentful or angered toward someone for a perceived advantage or success, material or otherwise. [from 14th c.]
- 1891, Oscar Wilde, The Picture of Dorian Gray
- I am jealous of everything whose beauty does not die.
- 1899, Mark Twain, The Man That Corrupted Hadleyburg
- The neighbouring towns were jealous of this honourable supremacy.
- Suspecting, suspicious.
- 1823, Walter Scott, Quentin Durward
- At length [...] the Duke demanded to know of Durward who his guide was, [...] and wherefore he had been led to entertain suspicion of him. To the first of these questions Quentin Durward answered by naming Hayraddin Maugrabin, the Bohemian; [...] and in reply to the third point he mentioned what had happened in the Franciscan convent near Namur, how the Bohemian had been expelled from the holy house, and how, jealous of his behaviour, he had dogged him to a rendezvous with one of William de la Marck's lanzknechts, where he overheard them arrange a plan for surprising the ladies who were under his protection.
Some usage guides seek to distinguish "jealous" from “envious”, using jealous to mean “protective of one’s own position or possessions” – one “jealously guards what one has” – and envious to mean “desirous of others’ position or possessions” – one “envies what others have”.  This distinction is also maintained in the psychological and philosophical literature. However, this distinction is not reflected in usage, as reflected in the quotations of famous authors (above) using the word jealous in the sense “envious (of the possessions of others)”.
suspecting rivalry in love; fearful of being replaced, in position or in affection
protective, guarding; careful in the protection of something one has or appreciates
envious; feeling resentful of someone for a perceived advantage, material or otherwise
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.
Translations to be checked