- Lead roundel with a channel; receives the imprint of the boulloterion's dies.
- Boulloterion (plural: boulloteria)
- The pliers-shaped instrument with which the Byzantines struck the lead blank disks in order to imprint the seal.
- A hollow channel that went through the blank lead disks; a cord was threaded through it before the blank was struck with the boulloterion.
- A round or oval frame containing the picture of Christ, represented on the breast of some types of the Mother of God.
- Term used her to indicate an actual administrative position.
- The usual abbreviated form of names of a holy person such as Christ or the Mother of God.
- Term used here to indicate a lifelong honorific title, which the Byzantines called ἀξία διὰ βαρβείου.