quatrefoil

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noun qua·tre·foil \ˈka-tər-ˌfȯi(-ə)l, ˈka-trə-\

Definition of quatrefoil

  1. 1 :  a conventionalized representation of a flower with four petals or of a leaf with four leaflets

  2. 2 :  a 4-lobed foliation in architecture

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Origin and Etymology of quatrefoil

Middle English quaterfoil set of four leaves, from Anglo-French quatre + Middle English -foil (as in trefoil)

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