This means “leader” as in one with political authority. It can be the equivalent of king, queen, duke, duchess, president, prime minister, governor, mayor, lord, lady, etc.
wā texe jawōla mo mawae ien la sāen makerāon jē sarāpa;
Not a one of them has doubt that he is the king of sarāpa.
wā sexme sawēra jīþa janahan ke sāeþ;
Among them he does not have another name.
And that’s the end of the story.