mantelletta

enUK

man·tel·let·ta

M0089400 (măn′tə-lĕt′ə)n. A knee-length, sleeveless vestment worn by Roman Catholic prelates.
[Italian, probably from Medieval Latin mantellētum, diminutive of Latin mantellum, mantle.]

mantelletta

(ˌmæntɪˈlɛtə) n (Roman Catholic Church) RC Church a sleeveless knee-length vestment, worn by cardinals, bishops, etc[Italian, from Old French mantelet or Medieval Latin mantelletum, diminutive of Latin mantellum mantle]