Christ - is this word derived from Greek language?..  

Jesus is the mispronunciation of the word Eesa (name).
Christ is the mispronunciation of the word Messah (Messiah).

The word "Christ" comes from the Greek for "Messiah," (it is actually a title, not a surname). It was originally Kristos. Christ is the English pronunciation or translation.

I am not sure. Most probably, it is derived from Greek language. That is my assumption.
I feel that Christ means 'anointed one ' or 'blessed one' . But , people misrepresented calling Christas 'Messiah' which means saviour.
This' savior' concept existed from the time of the Jews, because Jews were waitingfor a warrior who could save them from the bondage of Rome.

Hi Daffodil,
This title from the Greek Khri-stos' is equivalent to the Hebrew Ma-shi'ach, "Messiah; Anointed One." (compare Matthew 2:4)"Christ" is not a mere appellative added to distinguish the Lord Jesus from others of the same name; it is an official title.
The personal name of Jesus followed by the title Christ may call attention to the person himself and that he is the one who became the Anointed One of Jehovah. This occurred when he reached about 30 years of age, was baptized in water, and was anointed with Jehovah's spirit visibly observed in the form of a dove descending upon him.(Autumn of 29 C.E.)(Matt. 3:13-17) This is the point Peter made at Pentecost: "God made him both Lord And Christ, this Jesus." evidently recalling the expression he had heard from the lips of Jesus, who first used the term "Jesus Christ."(Acts2:36-38, John 17:3) This expression Jesus Christ is also used in the opening and closing words of the Christian Greek Scriptures.(Matt.1:1, Rev.22:21)
I hope this was helpful Daffodil.

Christ is a Greek word, actually Kristos, meaning, "Annointed One". It was the Greeks' way of translating Messiah, from the Hebrew texts.