Conniptions

The word conniption arrived on our planet in the mid eighteenth century. 

It has no known source and is believed to have been invented by an individual, as opposed to evolving from earlier words.

In essence, it was an act of reverse-essentialism.

Someone noticed a set of attributes to something unnamed, which lacked identity but had plenty of function, and set about to correct the situation. Probably inspired by watching his or her pet cat failing to catch a cockroach.

Unusually, although defined in the singular it is just about always used in the plural. No one has ever had just the one conniption.