Gender: Masculine
Origin: Greek
Meaning: “brother.”
Fre (AH-delf)
The name is derived from the Greek, αδελφος (adelphos), meaning “brother.”
The name was mostly notably borne by Adelphe of Metz, a 5th-century Franco-German saint, the 12th bishop of Metz.
Other forms of the name include:
Adelfus (Dutch/German)
Adelphe (French)
Adelphos αδελφος (Greek)
Alfio (Italian)
Adelphus (Late Latin)
In France, the designated name-day is September 11.
Sources
would by any chance the name Adolph (of which the portuguese variation would be Adolfo, a common name in this latin language) also come from this origin?
No. Adolph is a name of Germanic meaning “noble wolf”.