system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What does "Cunt" mean that makes it so much more offensive than other slurs?

I have researched this, looked up the various "askreddits" on this subject and just none of the answers sound reasonable at all. The top ranking google result said it's because it is an anglo saxon word, and short, as opposed to a latin word with fancy syllables. I don't buy this. I heard a woman say once that there is no other equivalent for a man. It might have been Liz Lemon. Still don't get it.
gpt
Interestingly enough, "cunt" comes to us from some related Germanic/Frisian words (kunte, kunton) and ultimately from the Latin "cunnus," which was a slang term for the vulva. (Cf. "cunnilingus.")

"Vagina," on the other hand, comes straight from the Latin "vagina," meaning "sheath" or "scabbard." (The "sword" getting sheathed in this euphemism should be obvious.)

I say "interestingly" because, etymologically, "vagina" seems a lot more offensive than "cunt," since it basically defines the female genitals according to their use by men during the sex act.