I came across this article from Answers In Genesis, which addresses a question and thought that many grapple with: "What is the true origin of the word "Easter", and should I use that word to describe the day we celebrate Christ's resurrection?
Here is an excerpt from that article:
"The modern controversy over the name “Easter,” when used in association with the celebration of the Resurrection of Jesus, is interesting, to say the least. The controversy seems to have blossomed at the beginning of the twentieth century and has caused many disturbances through the years. Examining this question is important to many Christians who do not wish to mix the worship of false gods with their worship of the only true God."
In a nutshell, it seems that there are multiple points in history that claim the origin of the word "Easter", and it is not clear which one bears the most accuracy. I am by no means a historian, so I don't have the grounds to agree/disagree with the points they make, however, I have found the Answers In Genesis ministry to be very accurate and God honoring in what they put out.
This honestly helps me be less dogmatic about the word "Easter", and opens lots of room for grace when discussing such topics.
If this has been something you have been interested in, I would highly recommend reading the complete article here: Is The Name "Easter" of Pagan Origin?