Zucchetto

The zucchetto (Italian: "small gourd") is a small, hemispherical, form-fitting ecclesiastical skullcap, worn by clerics of the Roman Catholic Church and also used by the higher clergy in Anglicanism as well as in the Eastern Orthodox Church tradition. The plural is zucchetti, and it is also known by the names pilus, pilos, pileus, pileolus (pileolo), subbiretum, submitrale, soli deo ("solideo"), berettino, calotte ("calotta").