What is "primus inter pares"

Primus inter pares (, prōtos metaxỳ ísōn) is a Latin phrase meaning first among equals. It is typically used as an honorary title for those who are formally equal to other members of their group but are accorded unofficial respect, traditionally owing to their seniority in office. Historically, the princeps senatus of the Roman Senate was such a figure and initially only bore the distinction that he was allowed to speak first during debate. Also, Constantine the Great was given the role of primus inter pares. However, the term is also often used ironically or self-deprecatingly by leaders with much higher status as a form of respect, camaraderie, or propaganda. After the fall of the Republic, Roman emperors initially referred to themselves only as princeps despite having power of life and death over their "fellow citizens". Various modern figures such as the Chair of the Federal Reserve, the prime minister of parliamentary regimes, the Federal President of Switzerland, the Chief Justice of the United States, and the Ecumenical Patriarch of the Eastern Orthodox Church fall under both senses: bearing higher status and various additional powers while remaining still merely equal to their peers in important senses.