You need to review history. Specifically Indo-Aryan culture.
You wrote:
“You need to review history. Specifically Indo-Aryan culture.”
No, I don’t. What you’re suggesting is just a nutty theory that no reputable scholar can produce any evidence for. What happens is that idiots, not knowing how to think or not knowing how to handle evidence, make the mistake of concluding that two things with slightly similar sounding names or traits or both must be related. This is why George Armstrong could actually delude people into believing there was some relationship between “Isaac” and “Saxon”: “Isaac”, “Isaac’s son”, “’saac’s son” = “Saxon”. Clear as mud.
The Babylonians weren't Indo-Aryans; they were Semites.
As you correctly point out, only English, Dutch, Norwegian, and some dialects of German refer to Easter by a cognate of "Eostre". Everyone else in the West calls it by a name derived from pesach. In Slavic languages, it's called "Bright Night". The official name of the day in the Roman Missal translates to "Sunday of the Passover Feast of the Resurrection of the Lord Jesus Christ"
The western Germanic tribes didn't get their pagan religion or their language from Babylon.