Late 19th century; earliest use found in The Botanical Gazette. From protero- + ancient Greek γυνή woman, wife + -y, after Italian proteroginia. Compare earlier protogyny and proterogynous.
Definition of proterogyny in US English:
proterogyny
nounˌprəʊtəˈrɒdʒɪni
Botany Zoology
Protogyny.
Origin
Late 19th century; earliest use found in The Botanical Gazette. From protero- + ancient Greek γυνή woman, wife + -y, after Italian proteroginia. Compare earlier protogyny and proterogynous.