introital

• a word derived from introit.
  introit

  noun

  a part of a psalm with antiphon recited by the celebrant of the Mass at the foot of the altar and, at High Mass, sung by the choir when the priest begins the Mass.

More Suggestions

• introit
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• intromit
• intra vitam
• intractable
• intraspinal
• intramural
• intranasal