Sentence:  Matilda continued her incantations; at intervals she took various items from the basket, the nature and name of most of which were unknown to the friar: but among the few which he distinguished, he particularly observed three human fingers, and an <WSD>agnus dei</WSD>, which she broke in pieces. 
Meaning of the word marked with <WSD> tags:  A bar of wax imprinted with a similar shape and blessed by the Pope. (from 16th c.)