The IX monogram or XI monogram, is a type of early Christian monogram looking like the spokes of a wheel, sometimes within a circle.

The IX monogram is formed by the combination of the letter "I" or Iota for IHCOYC (Ιησους, Jesus

Jesus

Jesus of Nazareth , commonly referred to as Jesus Christ or simply as Jesus or Christ, is the central figure of Christianity...

 in Greek) and "X" or Chi for XPICTOC (Χριστος, Christ

Christ

Christ is the English term for the Greek meaning "the anointed one". It is a translation of the Hebrew , usually transliterated into English as Messiah or Mashiach...

in Greek). The spokes can also be stand-alone, without the circle. These monograms can often be found as ancient burial inscriptions.