This is Grammer a Week, the periodic blog program-thing where I soapbox about a grammar subject I find interesting. You might, too! This week's installment definitely errs more on the side of "interesting" than "useful" because I'm talking about the word "pegasus" today. What do you think the plural form of the word "pegasus" is? "Pegasuses"? "Pegasi"? That question is actually much harder to answer than you may think.

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