I. What is This Sacrament Called?

From The Catechism of the Catholic Church

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This sacrament is called Baptism, after the central rite by which it is carried
out: to baptize (Greek baptizein) means to “plunge” or
“immerse”; the “plunge” into the water symbolizes the
catechumen’s burial into Christ’s death, from which he rises up by resurrection
with him, as “a new creature.”⁶

PART TWO: THE CELEBRATION OF THE CHRISTIAN MYSTERY

SECTION TWO THE SEVEN SACRAMENTS OF THE CHURCH
- CHAPTER ONE THE SACRAMENTS OF CHRISTIAN INITIATION
  - Article 1 THE SACRAMENT OF BAPTISM
    - I. What is This Sacrament Called?

From The Catechism of the Catholic Church – rosary.team