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Classic usage
Reading level: hard
Estimated CEFR level: B2 — Upper-Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English zele, from Old French zel, from Late Latin zēlus, from Ancient Greek ζῆλος (zêlos, “zeal, jealousy”), from Proto-Indo-European *yeh₂- (“to search”). Related to jealous.
ardor, ardour, elan
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Classic usage
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