“Whereäs” as an alternative spelling of “whereas”
I've always wondered which is the correct spelling: "naïve" or "naive"? Are both correct, and it is just a whichever-you-feel-comfortable-with?
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Either way. The dieresis is optional. Mostly it gets left off because people find it difficult to add it.
Actually, spelling it "naïve" is seen less and less, at least in the U.S., and is probably moribund if not actually archaic at this point here.