Again, backwards. All you are doing is demonstrating how a word came to exist in English.
The issue isn’t how we got the English word priest.
The issue is that it isn’t a NT office of the church.
God inspired the Greek words. What you call a priest isn’t a Christian concept in those inspired words.
Catholicism is a syncretism of parts of Christianity and paganism. Heck, there were pagan popes - another non-church office later added.
Get back to me when you’ve learned something about languages — or anything else!