ICXC - IC XC is an ancient Greek Christogram. This comes from the Greek spelling of Jesus Christ,  IC XC is simply the first and last letter of each individual word. Often a bar is depicted over each to signify that it is an abbreviation and to signify Christ's divinity. In Orthodox iconography, IC XC will appear next to Christ's head. Notable also is that IC XC will appear next to Christ's head in Orthodox iconography. (see also NIKA)