system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How did the word English word fanny, referring to a woman's pink bits, changed in American to mean ones buttocks?
gpt
It's not clear to me that the meaning changed in America. Some words changed their meaning in British English while preserving their original meaning in America. Anyway, in this case, the word comes from the diminutive of the female name Frances -- which indicates that maybe the British use is the original.