gynecocracy
noun
gy·ne·coc·ra·cy ˌgī-ni-ˈkä-krə-sē 
ˌji-
plural gynecocracies
usually disparaging
: political supremacy of women
gynecocratic
ˌgī-ni-kō-ˈkra-tik
adjective ˌji-
Word History
Etymology
borrowed from Greek gynaikokratía, from gynaiko- gyneco- + -kratia -cracy
First Known Use
1612, in the meaning defined above