This is so incredibly stupid it's impossible. Easter is only used in English and modern German. And you know that English is a relatively new language, right?
This betrays the fact that many look at things from an English language view and forget that in other languages, Easter is not called "Easter". In Latin languages it is Pasqua etc. derived from Passover while in Slavic languages it is Wielkanoc (Great Night) etc.
The Latin term for Easter is Pascha showing straight away that the statement is wrong
One should also point out that In Romantic languages, the word for Easter is based on Pesach, the Hebrew word for Passover, which Jesus was celebrating at the time of his execution. And the Romantic language speakers have been celebrating Easter far longer than the English.
only in the German/English languages is it called Ostern or Easter
Even in Danish and Norwegian it is called påske , in Swedish påsk, in Estonian it is lihavõtted in Finnish pääsiäinen in Dutch it is called Pasen -- so your entire post is utterly wrong as you're just looking at it from an English perspective
You do realise that Modern English only dates from the 1600s and prior to that it was Latin then French that was the official language, right? Hence even the English celebrated Pascha
You do realise that High German was the liturgical language only post the 1500s and prior to that it was Latin, right? hence the Germans celebrated Pascha too
As well as the PAAS HAAS