Sentence:  The use of the suffix ‘-ess' points to the anomaly. Many Anglo-Catholics are deeply opposed to the ordination of women to the priesthood, and speak not of women priests but of <WSD>priestesses</WSD>. This signals the alien nature of the <WSD>priestess</WSD>: ‘other' religions have <WSD>priestesses</WSD>, ‘we' do not. Any woman who claims that she is a Christian priest is at best deluded, since women cannot be priests. 
Meaning of the word marked with <WSD> tags:  A female Christian priest or minister, typically in a Protestant, Old Catholic, or independent Catholic denomination.