Beloved,it's important to bring it to your notice that not all Christian terminologies are original to Christianity e.g Pentecost is a Jewish Feast of Weeks – 50th Day of Passover (cf. Lev 23:15-16) – Not the Descent of the Holy Spirit but the DAY the Virgin Mary and the Apostles received the Holy Spirit (cf. Acts 2:1). Secondly, some terms used in English are not the same in other Languages e.g Christmas in English is Natale in Italian, Noel in French, Navidad in Spanish, etc. Thirdly, some Christian celebrations are a replacement of Pagan practices such as the worship of Sun god on Dec 25 which was replaced by the Commemoration of the Birth of Christ, the True Light of the World (cf. Jn 8:12) and Sun of Justice (cf. Mal 4:2; Ps 84:11).
The goddess Eastre is said to be celebrated as goddess of spring by the Saxons of Northern Europe with a festival called Eastre held during the spring equinox. And the calculation of the day of the Resurrection of Christ is also influenced by the spring equinox. And the Easter bunny with colored eggs – which in Europe and America is a symbol of Easter – takes its root also from the goddess Eastre – the goddess of fertility. But for German Lutherans, Easter Bunny plays the role of a judge, evaluating whether children were good or disobedient in behaviour at the start of the season of Easter. The month of April was considered ‘Month of Eoster’ which at the time of a 7th-8th monk Bede is translated ‘Paschal month’ even though we know that Easter sometimes. falls outside of April – e.g. in 2008, Easter was March 23.
But it is good to know that in Greek and Latin, the Easter Celebration was and is known as Πάσχα, "Pascha", as derived from Aramaic פסחא, similar to Hebrew פֶּסַח (Pesach) which originally denoted the Jewish Passover (cf. Matt 26:17). Hence Apostle Paul says “Get rid of the old yeast, so that you may be a new unleavened batch--as you really are. For Christ, our Passover lamb, has been sacrificed.” (1Cor 5:7). And the Church refers to the Passion, Death and Resurrection of the Lord as the Paschal Mystery.
Just as for Christians today, Pentecost is not the celebration of the Jewish Feast of Weeks but the celebration of the Descend of the Holy Spirit, Easter for Christian is the celebration of the Resurrection of Jesus Christ – as EASTER IS SYNONYMOUS TO RESURRECTION OF CHRIST.
Jesus said, “I am the resurrection and the life. The one who believes in me will live, even though they die; and whoever lives by believing in me will never die. Do you believe this?” (Jn 11:25-26)
"No one can come to me unless the Father who sent me draws them, and I will raise them up at the last day.” (Jn. 6:44)