diarchy

 
Pronunciation: /ˈdʌɪɑːki/
(also dyarchy)

noun (plural diarchies)

[mass noun]
  • government by two independent authorities (especially in India 1919–35).

Derivatives

diarchal

Pronunciation: /dʌɪˈɑːk(ə)l/
adjective

diarchic

Pronunciation: /dʌɪˈɑːkɪk/
adjective

Origin:

late 19th century: from di-1 'two' + Greek arkhia 'rule', on the pattern of monarchy