Webster’s Revised Unabridged Dictionary · 1913
Quarterfoil
Quar′ter·foil′ (kwa̤r′tẽr·foil′), n. [Quarier + foil: cf. F. quatre.] (Arch.) An ornamental foliation having four lobes, or foils.
Webster’s Revised Unabridged Dictionary · 1913
Quar′ter·foil′ (kwa̤r′tẽr·foil′), n. [Quarier + foil: cf. F. quatre.] (Arch.) An ornamental foliation having four lobes, or foils.