 Priests (also called presbyters) may (or may not) have the title of archpriest, protopresbyter (also called "protopriest", or "protopope"), hieromonk (a monk who has been ordained to the priesthood) archimandrite (a senior hieromonk) and hegumen (abbot).Deacons may have the title of hierodeacon (a monk who has been ordained to the deaconate), archdeacon or protodeacon.The lower clergy are not ordained through "cheirotonia" (laying on of hands) but through a blessing known as "cheirothesia" (setting-aside).