II. What is This Sacrament Called?

From The Catechism of the Catholic Church

1328
The inexhaustible richness of this sacrament is expressed in the different
names we give it. Each name evokes certain aspects of it. It is called:
Eucharist, because it is an action of thanksgiving to God. the Greek words
eucharistein¹³⁹ and eulogein¹⁴⁰ recall the Jewish blessings
that proclaim – especially during a meal – God’s works: creation, redemption,
and sanctification.

PART TWO: THE CELEBRATION OF THE CHRISTIAN MYSTERY

SECTION TWO THE SEVEN SACRAMENTS OF THE CHURCH
- CHAPTER ONE THE SACRAMENTS OF CHRISTIAN INITIATION
  - Article 3 THE SACRAMENT OF THE EUCHARIST
    - II. What is This Sacrament Called?

From The Catechism of the Catholic Church – rosary.team