Sable means black and since I have black dogs we started with that. We didn't like Sable so my dh started playing with the letters a little bit and we came up with Sadie. My younger lab, Shadow, originally supposed to be Madison and we were going to call her Maddy. But when I was training her I was calling her Madison and when we were just playing we were calling her Maddy. I had read some where that your dog should learn to go by one name so they don't get confused when training and playing etc. The night we got my dh took her out on a leash to go to the bathroom before we went to bed. The porch light was so it was casting a shadow on them in the yard. Well she started barking at the shadow. It was too funny. When he came in he said well I think I have a name for the puppy, Shadow, and it stuck.