superfluity

Etymology

superflu(ous) + -ity, Old French superfluite, from Medieval Latin superfluitas, from Latin superfluus.

noun

1. The quality or state of being superfluous; overflowingness.
2. Something superfluous, as a luxury.
3. (rare) Collective noun for a group of nuns.
   These probably mark the dwelling of a colony, or to speak more precisely, according to Dame Juliana Berners, a superfluity of nuns from Godstow, which nunnery had a cell there, and was patron of the living. 1905, Herbert A. Evans, Highways and Byways in Oxford and the Cotswolds, Macmillan and Co, page 266
   Alice put Anna back on the shelf and turned up the volume on the TV, where a local news reporter was imparting a salutary tale of woe involving a superfluity of nuns who'd got into a scrape at a crab festival. 2011, Sam Cullen, The Odd Bunnies, unnumbered page
   […] That man could charm the panties off a superfluity of nuns.” 2012, Beth Yarnall, Rush, Crimson Romance, published 2012