What do you have for a definition? Please post it.
Not for family-friendly reading.
Yep, that’s how Merriam Webster, Oxford and Cambridge define it. Not sure why anyone would think the Post got it wrong.
Cuckold derives from the cuckoo bird, alluding to the alleged habit of the female in changing its mate frequently and authentic (in some species) practice of laying its eggs in other nests within its community.[2][3] The association is common in medieval folklore, literature, and iconography. The original Middle English was "kukewold". It was derived from Middle English "cuccault", which was made up of "cucu" (Old French for the cuckoo bird itself) plus the pejorative suffix – "ault", indicating the named person was being taken advantage of as by a cuckoo bird.English usage first appears about 1250 in the satirical and polemical poem "The Owl and the Nightingale" (l. 1544). The term was clearly regarded as embarrassingly direct, as evident in John Lydgate's "Fall of Princes" (c. 1440). In the late 14th century, the term also appeared in Geoffrey Chaucer's "The Miller's Tale".[3] Shakespeare's poetry often referred to cuckolds, with several of his characters suspecting they had become one.[3]