Prompt: Where did the word dumb come from?

The English word dumb originally had nothing to do with intelligence. It meant unable to speak.

It comes from Old English dumb (pronounced roughly “doom”), meaning mute, silent, unable to speak. This in turn comes from the Proto-Germanic word dumbaz, which had the same meaning.

You can see related words in other Germanic languages:

• Old Norse: dumbr – mute
• Old High German: tumb – mute, dull
• German: dumm – stupid (the meaning shifted)
• Dutch: dom – stupid

Interestingly, English and Dutch took different paths:

• In Old English, dumb continued to mean “mute” for centuries. Expressions like deaf and dumb referred to people who could not speak (though this is now considered outdated and often offensive because many deaf people are not mute).
• Around the 18th and 19th centuries, dumb began to acquire the figurative meaning “slow-witted” or “stupid.” The idea seems to have been that someone who could not answer or speak appeared unintelligent, even though there is no real connection.
• In Dutch and German, that semantic shift happened much earlier. Dutch dom and German dumm almost entirely lost the original meaning of “mute” and came to mean “stupid.”

This kind of semantic shift is common. Words describing physical conditions often develop figurative meanings. For example:

• blind → “blind to the facts”
• deaf → “deaf to criticism”
• dumb → “stupid”

So the original sense of dumb was simply silent or unable to speak. The modern meaning of stupid is a much later development.