John Walker, A Critical Pronouncing Dictionary… (1806)
“ Nares, Mr. Smith, Mr. Perry, Barclay, and Entick, give both these words the short sound. As the word zealous may either come from the Latin zelus, (or rather zelosus,) or be a formative of our own from zeal, as villanous, libellous, etc. from villain, libel, etc. analogy might very allowably be pleaded for the long sound of the diphthong; and if custom were less decided, I should certainly give my vote for it; but as propriety of pronunciation may be called a compound ratio of usage and analogy, the short sound must in this case be called the proper one.—See Knowledge, and Principles, No. ”
