@cwebber Reminds me of "rabbit" which used to specifically refer to baby lagomorphs - the equivalent of "puppy" and "kitten". The name for an adult was "coney", and it rhymed with "money" and "honey" as you'd expect.
The problem was that "coney" became slang for lady-parts, and so (a) they used "rabbit" instead and (b) they changed the pronunciation to cone-ey.
Fortunately English responded to having "coney" removed from common use by making "pussy" slang for lady parts instead. Indomitable!