Pronouncing Poinsettia
If you look up the pronunciation of poinsettia in the dictionary, you'll find two versions, one that follows the spelling in a regular way (/ˌpɔɪnˈsɛ.tɪə/) and one that would more naturally correspond to the spelling "poinsetta" (/ˌpɔɪnˈsɛ.tə/).
A couple of days ago, a journalist contacted me about this. I knew that the word was formed by adding the usual pseudo-Latin -ia to the last name of Joel Roberts Poinsett, just as Clarke Abel's name gave us abelia and William Forsyth's name generated forsythia. And I knew that there is a common (and even dictionary-sanctioned) alternative pronunciation for poinsettia. But why the i-less version of poinsettia and not (for example) a similar version of forsythia?
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