Merriam-Webster's Word of the Day for March 13, 2026 is:

immure • \ih-MYOOR\  • verb

To immure something is to enclose it within or as if within walls. Immure is also sometimes used synonymously with imprison.

// Scientists at the research station in Antarctica are immured by the frozen wild that surrounds them.

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Examples:

"The Torlonia collection, which Alessandro Torlonia moved into a private museum in Rome in 1875, went into hiding in the early 1940s. ... Disputes among family members and with the government left the marbles hidden away, gathering dust and grime. For all those years scholars had to beg and bribe to get in. One government official, desperate to see what gems the Torlonia prince had immured, resorted to dressing up as a cleaner." — Jason Farago, The New York Times, 16 Apr. 2025

Did you know?

Like mural, immure comes from murus, a Latin noun meaning "wall." Immure came to English by way of the Medieval Latin verb immurare, formed from murus and the prefix in- (meaning "in" or "within"). Immure, which first appeared in English in the late 16th century, literally means "to wall in" or "to enclose with a wall," but it has extended meanings as well. In addition to senses meaning "to imprison" and "to entomb," the word sometimes has broader applications, essentially meaning "to shut in" or "to confine." One might remark, for example, that a very studious acquaintance spends most of her time "immured in the library."