Luke 22:17

He received a cup (dexameno pothrion). This cup is a diminutive of pothr. It seems that this is still one of the four cups passed during the passover meal, though which one is uncertain. It is apparently just before the formal introduction of the Lord's Supper, though he gave thanks here also (eucaristhsa). It is from this verb eucaristew (see also verse Acts 19 ) that our word Eucharist comes. It is a common verb for giving thanks and was used also for "saying grace" as we call it.