trefoil.
Any of several plants of the pea family, having compound, trifoliate leaves; especially one of the genus Trifolium.
Meaning & usage
Any of several plants of the pea family, having compound, trifoliate leaves; especially one of the genus Trifolium.
A symbol having the shape of such leaves, especially when used as an architectural ornament.
Ellipsis of trefoil knot.
Where this word comes from
From Middle English trefoil, from Old French trifoil, trefeul, from Latin trifolium, from tri- (“three”) + folium (“leaf”).
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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.