IPA: /ˈoʊvərˌlɔrdʃɪp/
KK: /ˈoʊvərˌlɔrdʃɪp/
The state or condition of having power and control over others, especially in a feudal or hierarchical system.
The king ruled with an overlordship that extended over many territories.
Overlordship → It is formed from "over-" (meaning above or beyond) and "lord" (from Old English "hlaford", meaning master or ruler) and "-ship" (meaning the state or condition of). The word "overlordship" refers to the condition of being a master or ruler above others.
Think of someone who is a master or ruler ('lord') who is 'above' ('over-') others, which helps you remember that 'overlordship' means the state of being a supreme ruler.