The Staurogram, also called the Tau-Rho, and the Monogrammatic cross.A staurogram used as τρ-ligature part of the spelling of the word σταυρον (as Ϲ⳨ΟΝ) in Luke 14:27 (Papyrus Bodmer XIV, 2nd century).A solidus minted under Anastasius I Dicorus (struck in Constantinople between 507–518). On the obverse is Victory standing left, holding a staff surmounted by a staurogram.An oil lamp with staurogram from Caesarea Maritima. Glass Factory Museum, Nahsholim, Israel.
The staurogram (⳨), also monogrammatic cross or tau-rho,[1] is a ligature composed of a superposition of the Greek letterstau (Τ) and rho (Ρ).
^The term staurogram in this sense is of relatively late coinage (1960s); "monogrammatic cross" is in use in the later 19th century.
