Overview
Subdeacon (or sub-deacon) is a minor order or ministry for men in various branches of Christianity. The subdeacon has a specific liturgical role and is placed between the acolyte (or reader) and the deacon in the order of precedence.
Subdeacons in the Eastern Orthodox Church
A subdeacon or hypodeacon is the highest of the minor orders of clergy in the Eastern Orthodox Church. This order is higher than the reader and lower than the deacon.
Canonical discipline
Like the reader, the clerical street-dress of the subdeacon is the cassock, which is usually black but only need be so if he is a monk. This is symbolic of his suppression of his own tastes, will, and desires, and his canonical obedience to God, his bishop, and the liturgical and canonical norms of the Church. As a concession in countries where Eastern Orthodoxy is little known, many only wear the cassock when attending liturgies or when moving about the faithful on church business. In some jurisdictions in the United States, a clergy-shirt will sometimes be worn instead of a cassock, and is commonly worn buttoned but with no collar or collar-tab to indicate a rank lower than deacon.
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