Pussy

Pussy \POOS-ee\ , noun;
1. A cat, especially a kitten

Pussies are weird. I prefer dogs. (source)

Pussy dates to 1699 and is a diminutive of puss. It means "cat", but it was also used to mean "rabbit" in the 18th century. Pussy as a term of endearment for a woman or girl pre-dates the "cat" definition by almost 150 years. The slang meaning "female genitals" dates to at least 1699, though is likely much older like any other coarse slang. Puss is a pretty common word in Germanic languages and several non-Germanic Proto-Indo-European languages as well. In all the languages it either means "cat" or it is a call to attract a cat.