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Finite and infinite come from the same root word, but the prefix of the latter completely changes the pronunciation. Speaking English as a second-language and reading a lot more than I listen, it makes me nervous that I might be missing other such changes.

Is this an isolated occurrence?

apaderno
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3 Answers3

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If I read your question correctly, you are looking for examples of words that change pronunciation because of prefixes. Another example would be famous (ˈfā-məs) and infamous (ˈin-fə-məs).

I don't know what this phenomenon is called, but it can also apply to other derivations from the same word; for instance, house (haʊs) and houses (ˈhaʊzɪz), (or the verb house (haʊz)), photograph (ˈfō-tə-ˌgraf) and photographer (fə-ˈtä-grə-fər).

Brian Hooper
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Another example of word that changes pronunciation because a prefix is belief, which is pronounced /bəˈlif/ or /biˈlif/ in American English, and where the prefix un- changes the pronunciation to /ˌənbəˈlif/.

apaderno
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In fact the prefix didn't change the pronunciation. The pronunciation for infinite was the original form (coming from French/Latin). Somehow, when the prefix was removed, the pronunciation changed.

KillingTime
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