When you think about the word bunny in reference to a rabbit — seems weird right? It all started back in the 14th century.
The Online Etymology Dictionary says that “bunny” comes from Scotland, where “Bun” was a cute name for a Rabbit, perhaps coming from the French “Bon.” It was a shift from the older word “Cony”, pronounced “cunny,” resulting from the latter word taking on more vulgar anatomical meaning. It’s a weird and strange way to arrive at a word, but it definitely seems to work!