cinquefoil

• cinqfoil
• quinquefoil

From Old French cinqfoil, from cinq (“five”) + foil (“leaf”).

• (UK) IPA^(key): /ˈsɪŋk.fɔɪl/

• Audio (UK):

  (file)

• (General American) IPA^(key): /ˈsɪŋkˌfɔɪl/, /ˈsæŋkˌfɔɪl/
• Hyphenation: cinq‧foil

cinquefoil (plural cinquefoils)

1. A potentilla (flower).
   • 1936, Rollo Ahmed, The Black Art, London: Long, page 112:

     Witches always anointed themselves with ointments before departing up the chimney to their Sabbaths. One such ointment was composed of Aconite, Belladonna, Water Parsley, Cinquefoil and Babies' Fat.

2. (heraldry) A stylized flower or leaf with five lobes.
3. (topology) A particular knot of five crossings.

• (flower): fiveleaf
• (knot): cinquefoil knot, ${\displaystyle 5_{1}}$, ${\displaystyle T(5,2)}$

• trefoil
• quatrefoil
• sexfoil
• octofoil

• cinque
• multifoil
• polyfoil

• cinquefoil knot on Wikipedia.Wikipedia