"under his dalmatic"
 The translators have chosen the word 'dalmatic' to describe the priest's dress; this is an item of liturgical costume worn by priests in the Western Churches, such as the Anglican and Roman Catholic faiths. The Eastern Orthodox equivalents of the dalmatic are the sticharion and the sakkos. It is likely that the priest here would have worn the latter. A sakkos is a patterned vestment with wide sleeves, usually made from a rich brocade. Both the dalmatic and the sakkos are descendants of Byzantine liturgical dress.