Multiple processes
Many of these new words can, of course, have a very brief life-span. Perhaps the generally accepted test of the “arrival” of recently formed words in a language is their published appearance in a dictionary. However, even this may not occur without protests from some conservative voices, as Noah Webster found when his first dictionary, published in 1806, was criticized for citing words like advocate and test as verbs, and for including such “vulgar” words as advisory and presidential. It would seem that Noah had a keener sense than his critics of which new word-forms in the language were going to last.