You sure you aren't talking about 90% of Modern American English's vocabulary? Because my personal vernacular and the total number of words in the language are two very different things. Just glancing at the most commonly used words in English:
The OEC: Facts about the language - Oxford Dictionaries
I can tell just by looking that the bulk of them are Anglic, and thus pre-Christian. Heck, the word "English" is itself derived from Paganism
Yes... I speak Paganism, how about you
Modern English is technically called "Protestant English"
And you would likely not recognize English before the year 1585.
As a matter of fact my avatar was drawn by pagans at Antioch, the Greek Hellenist witnessed the first followers of Jesus being persecuted and put to death. They recorded the events via paintings and fresco.
The Greek Hellenistic Pagans decided to follow Jesus and they were the first people to call themselves "Christians" around 34 AD I believe. These pagans exploded Christianity through the Pagan Greek world and that is why Christianity is so popular now a days.
My dates may be a little off but I then again I am just learning of the origins of Christianity.
Now the words you use in the English language, probably over 90% of them are of Greek origin first, then translated into Latin (in some instances) and then into English. Technically you are speaking Ancient Greek.
English is the most dominating language on the planet, it is more efficient and more expressive than others, even over French.
English is the international language of business and for a reason... everything has a reason and a purpose.
*Modern English also happens to have Reformed the Catholic (Latin) Church
*Here is Part 1 of a 6 part (6hr) Series you may find interesting...