Christ is the English term for the Greek Χριστός (Khristós) meaning "the anointed", which as a translation of the Hebrew מָשִׁיחַ (Mašíaḥ,), carries much of its original Jewish meaning of "Messiah"—"one [who is] anointed" or appointed by God with a unique and special purpose (mission) on Earth.
In the 3rd- to 1st-centuries BC, the Tanakh (what Christians in later...