devolve

Merriam-Webster's Word of the Day for August 28, 2022 is:

devolve • \dih-VAHLV\  • verb
Devolve means "to gradually go from an advanced state to a less advanced state," or "to pass something, such as responsibility or power, from one person or group to another person or group at a lower level of authority."

// Over time, the weekly book club meetings devolved into mean-spirited gossip sessions.

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Examples:
"'Leslie [Jones] and I talk on the phone all the time, and most of our conversations are us complaining about our lives or the crazy world we live in,' [Lenny] Marcus added. 'It usually just devolves into us cracking each other up.'" — Rashad Grove, Ebony, 1 Aug. 2022

Did you know?
Evolve? Check. Revolve? Check. Devolve? Now we’re on a roll—literally. All three of these words (and more) evolved from the Latin verb volvere, meaning "to set in a circular course, to cause to roll, to bring round."