The origin of the name Emmanuel is Greek
This is how Emmanuel is written in Greek:
Ἐμμανουήλ = Emmanouēl
The biblical meaning of the name Emmanuel is: God with us
Emmanuel was the title applied to the Messiah, born of the virgin
The name Emmanuel appears in the bible in the following verse:
Matthew 1:23 KJV
Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel, which being interpreted is, God with us.