I make up words. Not entire languages, just words. And each of my dogs has several names/nicknames that I call them, specific to each dog, some of them are actual words, and some of them are my own gibberish...and they all respond ! they have all their names memorized, LOL
for example, my schnauzer's name is Camille. And she's my neemer. She is unique, so I labelled her something unique, and there will only ever be one neemer. she is it. I love her to bits, she's the dog of a lifetime. ♥
there are some words I've used since I was a kid, and some that kind of evolve, I start out with a thought, and the word evolves until it just sticks. Then I use it. Only my husband knows what I'm talking about, although I am aware enough not to talk my words to random strangers. It's sort of an "in" thing-- in our house only. I have to smile when I hear my husband use one of my words.... that's so cute.
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{the avatar is a Claude Monet}