In modernity, "Christ" has been used as an expletive. Christians often perceive it simply as Jesus' "last name". However, a right understanding of "the Christ" is rooted in Genesis 3:15 and the promise of the "seed". The Messiah is one who would restore humanity's relationship to God and restore creation to its original perfection.
Further developments of this anointed deliverer would be seen through the Abrahamic and Davidic covenants.
The surprise to the Jewish people, however, would be that the Christ must suffer before entering into His glory.