: the distinguishing character, sentiment, moral nature, or guiding beliefs of a person, group, or institution

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In Greek, ēthos means “custom” or “character.” As originally used by Aristotle, it referred to a person’s character or personality, especially with respect to a balance between passion and caution. In English, ethos is used today to refer to the practices or values that distinguish one person, organization, or society from others. In rhetoric, ethos is often studied alongside pathos and logos as a technique to successfully persuade an audience. Related terms in the English language include ethics (“a branch of philosophy dealing with what is morally right or wrong”) and ethology (“a branch of knowledge dealing with human character and with its formation and evolution”).  

Examples of ethos in a Sentence

The company made environmental awareness part of its business ethos. They are working to keep a democratic ethos alive in the community.
Recent Examples on the Web
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The March 19-22, 2025 event in Chișinău revealed a bold fusion of streetwear, upcycled fashion, and avant-garde knitwear, demonstrating Moldova's fashion ethos. Cassell Ferere, Forbes.com, 8 Apr. 2025 There, by his bedside, her glib ethos of attachment gives way to something more tender. Alexandra Tanner, New York Times, 5 Apr. 2025 Sustainability initiatives are central to the property’s ethos. Regan Stephens, Travel + Leisure, 4 Apr. 2025 Several sources tell me that the governor’s ambiguity was in no small part in the hope of keeping Sundance, with its ethos of inclusion, in state. Dominic Patten, Deadline, 28 Mar. 2025 See All Example Sentences for ethos

Word History

Etymology

New Latin, from Greek ēthos custom, character — more at sib

First Known Use

1842, in the meaning defined above

Time Traveler
The first known use of ethos was in 1842

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Cite this Entry

“Ethos.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ethos. Accessed 13 Apr. 2025.

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