LoveUniHateExams,
You are actually correct, except you a describing how the word ended up becoming pronounced in Middle and Modern English.
I was describing the philology behind how the C went from being the K sound of a transliteration of the K in KYRIOS to the eventual CH in "church." We are actually describing the same things, just that I am talking about how the word started and you are talking about how the word eventually was pronounced.
The old English is based on the Dutch and German words. In Dutch the word was KERK and the German was KIRCHE. All three words are transliterations (which are different from translations) of the Greek KYRIOS. The old English CIRICE has also been found as being written as CYRICE or even CYRCE to be better match KYRIOS.
Originally the C was intended to be pronounced as a K sound, as in KERK, KIRCHE, and KYRIOS. But you are correct, that didn't stick which is why we have the current pronunciation. But the C originally had a K sound, as even the Old Saxon was written as KIRKA. In fact, the modern English word "curriculum" retains the old English pronunciation of C as a K (though the words are not related).
You are welcome to double check my claims as we can only benefit from that, but in the end you would only be showing that I made an error which, being human, is always possible and clearly quite apt to happen by me on a regular basis. It will not be the first time nor the last for imperfect ol' me.
The really important thing is the issue of how the Watchtower has made claims of being the true "church of Christ" when it is opposed to such vocabulary at the same time. That is the real "camel" that should be strained, not my "gnat" of whether a C was pronounced one way or another in a transliteration of the word KYRIOS. Any mistake I may have made, if I have, is quite insignificant by comparison to the falsehood of the Jehovah's Witnesses.