IPA: //daɪˈɑːrkəl//
KK: /daɪˈɑrkəl/
Relating to a system of government or organization where two leaders or authorities share power.
In a dyarchal system, decisions are made jointly by two rulers.
Dyarchal → It is formed from "di-" (meaning two) and "archos" (from Greek, meaning ruler or leader). The word "dyarchal" refers to a system of governance where two rulers share power.
Think of 'two' ('di-') leaders ('archos') sharing authority — that's what dyarchal means.