succinctorium in British English
(ˌsʌksɪŋkˈtɔːrɪəm) or succinctory (səkˈsɪŋktərɪ, -trɪ)
nounWord forms: plural -riums, -ria (-rɪə) or -ries Roman Catholic Church a bandlike vestment suspended from the girdle, embroidered with an Agnus Dei, worn by the Pope on solemn occasions