Why do we call it Thanksgiving?

It’s probably one word, but it’s also pretty saying 2 words. Thanks as in thanking someone and then giving as in giving something to someone. When I was younger I thought one reason it was called that was because we would give something to someone and then that person would thank us. Maybe that’s one of the reasons, no? Whether or not that’s the case, any other reasons why it’s called Thanksgiving?

Why do we call it Thanksgiving?
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