Homology is the idea that a resemblance between two languages can be explained by saying that they both descended from a common ancestor.
For example, many words in the Indo-European languages (English, Spanish, Russian, Sanskrit, etc.) sound similar, so many people think they all descend from the "Proto-Indo-European" language.
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f-e-r-n-w-e-h is actually a gross misspelling of the name "gregory"
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