Mid 19th century; earliest use found in Cardale Babington (1808–1895), botanist and archaeologist. From French périgone from scientific Latin perigonium.
Definition of perigon in US English:
perigon
(also perigone)
nounˈpɛrɪɡɒn
Botany
The perianth of a flowering plant.
Origin
Mid 19th century; earliest use found in Cardale Babington (1808–1895), botanist and archaeologist. From French périgone from scientific Latin perigonium.