zealous.
Full of zeal; ardent, fervent; exhibiting enthusiasm or strong passion, particularly in matters of religion.
Meaning & usage
Full of zeal; ardent, fervent; exhibiting enthusiasm or strong passion, particularly in matters of religion.
Where this word comes from
Etymology tree Proto-Indo-European *yeh₂- Proto-Indo-European *-los Proto-Indo-European *yéh₂los Ancient Greek ζῆλος (zêlos)bor. Latin zēlus Proto-Indo-European *h₃ed- Proto-Indo-European *-os Proto-Indo-European *h₃édosder.? Proto-Italic *-ŏ̄dsos? Old Latin -ōssus Latin -ōsus Latin zēlōsusder. Middle English zelose English zealous From Middle English zelose, from Latin zēlōsus, from zēlus + -ōsus, from Ancient Greek ζῆλος (zêlos, “zeal, jealousy”), from ζηλόω (zēlóō, “to emulate, to be jealous”). By surface analysis, zeal + -ous. Doublet of jealous.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.