Eucharist
The name for the sacrament of Eucharist comes for the Greek word meaning giving thanks to God. The sacrament of Eucharist was instituted by Jesus at the Last Supper when, on the night he was betrayed, he broke the bread and, giving thanks, broke it, and gave it to his disciples and likewise took the chalice and, giving thanks, gave it to his disciples.
When he instituted the sacrament of Eucharist, Jesus commanded his disciples to celebrate this sacrificial meal, which celebrates his death and resurrection, until he returns in glory.