After Saint Peter (30 AD to 64 or 67): 34 or 37 years who had the longest reign:
The usual term would be "papal legate", but if you were talking of a purely diplomatic envoy of the pope it would be "papal nuncio".
A Papal Nuncio.
The papal election from November 1268 to September 1, 1271, following the death of Pope Clement IV, was the longest papal election in the history of the Catholic Church.
The Papal Crown or Papal Triple Tiara
The longest side of a triangle is called the hypotenuse, but this term specifically applies to right triangles. In general triangles, the longest side is simply referred to as the longest side. In any triangle, the longest side is opposite the largest angle.
Papal such as the papal vestments, the papal apartments, etc..
Papal such as the papal vestments, the papal apartments, etc..
Before St. Peter (year 33 AD) there was no pope. The papal election from November 1268 to September 1, 1271, following the death of Pope Clement IV, was the longest papal election in the history of the Catholic Church. For nearly 3 years the Church had no pope.
A papal decree is called a Papal Bull.
"Papalysis" appears to be a play on words combining "Papal," relating to the Pope or the papacy, and "analysis." While it is not a widely recognized term, it could suggest a critical examination or discussion of papal actions, statements, or doctrines. If you meant a different term or concept, please provide more context for clarification.
The noun is papacy, which means the office of the Pope, although you could also use the phrase "papal term." (The phrase "papal reign" is sometimes avoided because of the connotation which is not applicable to current popes.)
Papal bull