IPA: //ˌproʊˈkɒnsjʊlɪt//
KK: /proʊˈkɒnsəˌleɪt/
A region or area governed by a proconsul, or the position held by a proconsul.
The proconsulate was responsible for maintaining order in the province.
Proconsulate → It is formed from "pro-" (meaning for or in place of) and "consul" (from Latin "consul", meaning a high-ranking official or magistrate). The term refers to the office or authority of a proconsul, who acts in place of a consul, typically in a province.
Think of someone acting 'for' ('pro-') a high-ranking official ('consul') — that's why proconsulate refers to the authority of someone acting in place of a consul.