Why is there a "b" in doubt? - Gina Cooke

694,295 views ・ 2012-12-17

TED-Ed


Please double-click on the English subtitles below to play the video.

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Translator: Andrea McDonough Reviewer: Bedirhan Cinar
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People often think the word "doubt" spelling is a little crazy
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because of the letter "b".
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Since it doesn't spell a sound,
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most folks can't figure out what it's doing there.
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But in spite of what most of us learn in school,
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sound is <i>never</i> the most important aspect
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of spelling an English word.
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A word's meaning and history need to come first.
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To doubt means to question,
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to waver,
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to hesitate.
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As a noun, it means uncertainty or confusion.
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The present-day English word "doubt"
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started as a Latin word, "dubitare".
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It first moved from Latin into French
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where it lost both its "buh" sound and its letter "b".
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And then it came into English in the 13th century.
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About 100 years later,
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scribes who wrote English but also knew Latin,
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started to reinsert the "b" into the word's spelling,
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even though no one pronounced it that way.
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But why would they do this?
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Why would anyone in their right mind
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reinsert a silent letter into a spelling?
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Well, because they knew Latin,
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the scribes understood that the root of "doubt" had a "b" in it.
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Over time, even as fewer literate people knew Latin,
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the "b" was kept because it marked important,
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meaningful connections to other related words,
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like "dubious" and "indubitalbly,"
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which were subsequently borrowed into English
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from the same Latin root, "dubitare".
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Understanding these historical connections
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not only helped us to spell "doubt,"
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but also to understand the meaning
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of these more sophisticated words.
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But the story doesn't end there.
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If we look even deeper,
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we can see beyond the shadow of a doubt,
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just how revealing that "b" can be.
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There are only two base words in all of English
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that have the letters "d-o-u-b":
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one is doubt,
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and the other is double.
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We can build lots of other words
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on each of these bases,
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like doubtful
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and doubtless,
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or doublet,
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and redouble,
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and doubloon.
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It turns out that if we look into their history,
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we can see that they both derive
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from the same Latin forms.
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The meaning of double,
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two,
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is reflected in a deep understanding of doubt.
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See, when we doubt,
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when we hesitate,
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we second guess ourselves.
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When we have doubts about something,
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when we have questions or confusion,
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we are of two minds.
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Historically, before English began
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to borrow words from French,
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it already had a word for doubt.
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That Old English word was "tweogan,"
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a word whose relationship to "two"
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is clear in its spelling as well.
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So the next time you are in doubt
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about why English spelling works the way it does,
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take a second look.
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What you find just might make you do a double-take.
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