from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of hagioscope.
Sorry, no etymologies found.
Through these hagioscopes -- or "holy spy-holes" -- the prior could see mass being celebrated at the high altar and at the altars below in the transept, without entering the cathedral.
The exteriors of these are of the same form and size as the crypt windows, but they are deeply splayed inside, and probably were used as hagioscopes or squints, to allow those kneeling in the choir aisles to see the priest celebrating mass at the crypt altar.