sexfoil
/ˈsɛksfɔɪl
/noun
(Especially in architecture) an ornamental design having six leaves or petals radiating from a common centre.The general obverse type is of a crowned and bearded portrait inside a triangle with a hand holding a sceptre to the left and a cinquefoil or sexfoil to the right....
- It is circular with a sexfoil depression.
Origin
Late 17th century: from sexi- 'six', on the pattern of words such as trefoil.