Q. Is it right to use the term “Easter” to celebrate Jesus’ Resurrection?
A. The only reference to Easter in the KJV Bible is in Acts 12:4 and should more correctly be stated as “Passover”, from pascha.
Easter was originally a pagan festival honouring Eostre, a Teutonic goddess of light and spring. Sacrifices were offered in her honour. She, Eostre, Easter, has absolutely nothing to do with Jesus, His Resurrection or His people.
We are wise to refer to Passover or The Passion instead.