cuckoldry

plural cuckoldries

1. countableuncountableAn act of adultery committed by a married woman against her husband.

   How many such-like cuckoldries are there in histories, procured by the Gods against seely mortall men?

   1603, Michel de Montaigne, chapter 12, in John Florio, transl., The Essayes […], book II, London: […] Val[entine] Simmes for Edward Blount […], →OCLC

2. countableuncountableThe state of being a cuckold.

   By the end of 2017, it was clear that Homo politicus, like his allies in Hollywood and the media, tends not towards cuckoldry but a 21st-century equivalent of the droit du seigneur.

   2017 December 22, Dominic Green, “Are You Sufficiently Woke?”, in The Weekly Standard, Washington, retrieved 10 Feb 2022

3. countableuncountablebiologyAmong certain male fish, the practice of interrupting a mating pair to release sperm in an attempt to fertilize the female.