Webster's Revised Unabridged Dictionary · 1913

Cinquefoil

Cinquefoil , noun

[Cinque five + foil, French feuille leaf. See Foil.]

1.
(Botany) The name of several different species of the genus Potentilla; -- also called five-finger, because of the resemblance of its leaves to the fingers of the hand.
2.
(Architecture) An ornamental foliation having five points or cups, used in windows, panels, etc. — Gwilt
Collocations (1)
Marsh cinquefoil , the Potentilla palustris, a plant with purple flowers which grows in fresh-water marshes.