I believe this sort of thing is known as aphasia; it was fascinating to read about what it can be like in someone multilingual. Theres an episode [1] of Helen

I believe this sort of thing is known as aphasia; it was fascinating to read about what it can be like in someone multilingual. Theres an episode [1] of Helen Zaltzman’s fantastic podcast The Allusionist that deals with a similar story: a woman who has to essentially re-learn how to speak and understand English after a brain aneurysm. I highly recommend giving it a listen if you’re interested; it’s only half an hour or so and really deepened my appreciation of how plastic and resilient our brains can be. [1]: https://www.theallusionist.org/allusionist/eclipse https://www.theallusionist.org/allusionist/eclipse