perra
/ˈpera/ · A2 · noun · f
cunt
🐕 perra = perro (dog) with feminine -a: literally a female dog
Same shift as English: the word for a female dog became an insult for a woman. In Spain, perra also named old copper coins (perra gorda, perra chica), whose stamped lion was mocked as a dog, so perras came to mean money.