in·troit | \ ˈin-ˌtrȯit , -ˌtrō-ət , in-ˈtrȯit , -ˈtrō-ət \

Definition of introit 

1 often capitalized : the first part of the traditional proper of the Mass consisting of an antiphon, verse from a psalm, and the Gloria Patri

2 : a piece of music sung or played at the beginning of a worship service

First Known Use of introit

15th century, in the meaning defined at sense 1

History and Etymology for introit

Middle English, from Medieval Latin introitus, from Latin, entrance, from introire to go in, from intro- + ire to go — more at issue entry 1

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21 Aug 2018

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The first known use of introit was in the 15th century

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