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The word "heresy" comes from the Greek αἵρεσις, ''hairesis'' (from αιρεομαι, ''haireomai'', "choose"), which means either a ''choice'' of beliefs or a ''faction'' of dissident believers. It was given wide currency by [[Irenaeus of Lyons]] in his tract ''The Detection and Refutation of False Knowledge'' (commonly known by the title of the Latin translation, ''Contra Haereses'' (''Against Heresies'') to describe and discredit his opponents in the early Christian Church. He described his own position as orthodox (from ''ortho-'' "straightright" + ''doxa'' "thinkingglory" or "belief") and his position eventually evolved into the position of the early Christian Church.