If that is true, what does Protestant mean? Is it just a word meaning ...what?
CATHOLIC comes from the Greek word Katholikos, which was later Latinized into Catholicus.
It means 'Universal', which in itself means, 'of or relating to, or affecting the entire world and ALL peoples therein'. It means, ALL encompassing, comprehensibly broad, general, and containing ALL that is necessary. In summation, it means ALL people in ALL places, having ALL that is necessary, and for ALL time.
It is infered in
Matthew 28:19-20, "Go, therefore and make disciples of ALL nations...teaching them to observe ALL that I have commanded you; And behold, I am with you ALL days, even unto the consummation of the world. That is a statement of Universality, Katholicos, Catholicus, Catholic.
"proclaimed (KATAnggeletai) in the whole universe (en HOLO to kosmo)” (Rom. 1:8)
Thus the word
KATAHOLOS or
Catholic in English originated from Scriptures -
Romans 1:8
"So the church throughout all Judea and Galilee and Sama'ria had peace and was built up; and walking in the fear of the Lord and in the comfort of the Holy Spirit it was multiplied." [Acts 9:31 RSV]
There the words
"church throughout all" is translated from the Greek words "Ecclesia kata holis"
Thus the word KATAHOLOS or Catholic in English originated from Scriptures - Romans 1:8 and Acts 9:31, and inferred in Matthew 28:19
"Where the Bishop appears, there let the people be, just as where Jesus Christ is, there is the Catholic Church."
St. Ignatius of Antioch's letter to the Smyrneans, paragraph 8, of 106 A.D.
Undoubtedly the word was in use before the time of this writing.
Other written records of the term "CATHOLIC" describing a character of the Christian Church:
Martyrdom of St. Polycarp 155AD;
Clement of Alexandria, Stromateis 202AD;
Cyprian, Unity of the Catholic Church 251AD;
Cyprian, Letter to Florentius, 254AD