mascaron
/ˈmaskərən/ /ˈmaskər(ə)n/Architecture
noun
A representation, often grotesque, of a human or animal face, used as an architectural ornament.
Origin
Mid 17th century; earliest use found in John Evelyn (1620–1706), diarist and writer. From French mascaron grotesque architectural mask from Italian mascherone grotesque mask from maschera + -one.