All novel linguistic constructs are 'misuses' in some sense or another that have become accepted.
In this case that's not so though, the etymology is from the Greek '(upon|near|against) the people, and does not necessarily refer only to disease.
In this case that's not so though, the etymology is from the Greek '(upon|near|against) the people, and does not necessarily refer only to disease.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3373038/#!po=96...
What the server /accepts/ is left to configuration (some still recommend, "Strict in formulating the output, loose in interpreting the input"). What is "legitimate" is another matter, and will have to consider the term's curriculum, also because other proposals are faulty (e.g. conventionalism: "/whose/ convention?").