pallium

Etymology

Borrowed from Latin pallium (“a cloak”). Doublet of pall.

noun

1. (historical) A large cloak worn by Greek philosophers and teachers.
2. (Christianity) A woolen liturgical vestment resembling a collar and worn over the chasuble in the Western Christian liturgical tradition, conferred on archbishops by the Pope, equivalent to the Eastern Christian omophorion.
   Gregory sent Augustine a special liturgical stole, the pallium, a piece of official ecclesiastical dress borrowed from the garments worn by imperial officials. 2009, Diarmaid MacCulloch, A History of Christianity, Penguin, published 2010, page 339
   Wynfrith, an Anglo-Saxon monk later known as St Boniface, who was the first archbishop of Mainz and a key figure in the Empire's church history, was given cloth that had lain across St Peter's tomb as his pallium in 752. 2016, Peter H. Wilson, The Holy Roman Empire, Penguin, published 2017, page 23
3. (malacology) The mantle of a mollusc.
4. (anatomy) The cerebral cortex.
5. (obsolete, meteorology) A sheet of cloud covering the whole sky, especially nimbostratus.