Is this your crossword clue?
"zeal" is also used as a crossword clue. If that's what you saw, the answer is often enthusiasm (10 letters).
Definitions
Great energy or enthusiasm for a cause or goal.
Word origin
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.
Used in a sentence
“She extols the virtues of veganism with missionary zeal.”
“I bear them record that they have a zeal of God, but not according to knowledge.”
“Zeal, the blind conductor of the will”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer2 curated clues
01“Passionate eagerness”4 letters
02“Eager enthusiasm”4 letters
Not quite right?
"Search similar patterns."
Z___