kibosh
Merriam-Webster's Word of the Day
Merriam-Webster
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🗓️ 17 October 2025
⏱️ 2 minutes
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Summary
Merriam-Webster's Word of the Day for October 17, 2025 is:
kibosh • \KYE-bosh\ • noun
Kibosh refers to something that serves as a check or stop. It is usually used in the phrase “put the kibosh on” to mean “to stop or end (something)” or “to prevent (something) from happening or continuing.”
// I downloaded an app to help me put the kibosh on my high screen time.
Examples:
“… Maybe, suggests [Graham] Dugoni and other advocates, instead of putting the kibosh on devices entirely, we need to treat modern society like a teenager on a rebellious streak. Rather than saying no, we need to show them support, offer a gentle hand, maybe even make them think it’s their idea. In a way, it’s time for some gentle parenting.” — Chase DiBenedetto, Mashable, 3 June 2025
Did you know?
Evidence of kibosh dates the word to only a few years before Charles Dickens used it in an 1836 sketch, but despite kibosh being relatively young its source is elusive. Claims were once made that it was Yiddish, despite the absence of a plausible Yiddish source. Another hypothesis pointed to the Irish term caidhp bhais, literally, “coif (or cap) of death,” explained as headgear a judge put on when pronouncing a death sentence, or as a covering pulled over the face of a corpse when a coffin was closed. But evidence for any metaphorical use of this phrase in Irish is lacking, and kibosh is not recorded in English as spoken in Ireland until decades after Dickens’s use. More recent source theories include a heraldic term for an animal’s head when born with only its face fully showing, and an Arabic word meaning “whip, lash,” but as the note at our etymology explains, no theory has sufficient evidence to back it.
Transcript
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| 0:00.0 | It's the word of the day for October 17th. |
| 0:12.0 | Today's word is Kaibosh, spelled K-I-B-O-S-H. |
| 0:16.0 | Kaibosh is a noun. |
| 0:18.0 | It refers to something that serves as a check or stop. It's usually used in the phrase, put the kibosh is a noun. It refers to something that serves as a check or stop. It's usually used in the |
| 0:22.9 | phrase put the kibosh on to mean to stop or end something or to prevent something from happening |
| 0:29.3 | or continuing. Here's the word used in a sentence from mashable. Maybe suggests Graham Dugoni |
| 0:36.2 | and other advocates. Instead of putting the kibosh on devices entirely |
| 0:41.0 | we need to treat modern society like a teenager on a rebellious streak rather than saying no we need to |
| 0:47.6 | show them support offer a gentle hand maybe even make them think it's their idea in a way |
| 0:53.5 | it's time for some gentle parenting. |
| 0:57.1 | Evidence of Kaibosh dates the word to only a few years before Charles Dickens used it in an 1836 sketch. |
| 1:05.0 | But despite Kaibosh being relatively young, its source is elusive. |
| 1:09.9 | Claims were once made that it was Yiddish, despite the |
| 1:13.3 | absence of a plausible Yiddish source. Another hypothesis pointed to the Irish term, |
| 1:19.2 | Kipwarsh, literally quaff or cap of death, explained as headgear a judge put on when pronouncing |
| 1:26.9 | a death sentence, or as a covering pulled over the face of a corpse when a coffin was closed. |
| 1:32.3 | But evidence for any metaphorical use of this phrase in Irish is lacking, and Kaibosh is not recorded in English as spoken in Ireland until decades after Dickens' use. |
| 1:48.8 | More recent source theories include a heraldic term for an animal's head when born with only its face fully showing, |
| 1:52.2 | and an Arabic word meaning whip or lash, |
| 1:55.7 | but as the note at our etymology explains, |
| 1:58.8 | no theory has sufficient evidence to back it. |
| 2:01.4 | With your word of the day, I'm Peter Sokolowski. |
... |
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