As we parents all know, toddlers can't get their mouths around the shape of an R. Mostly, they use that endearing W sound, instead. When Pumpkinpie was a toddler, she didn't have those Ws in place of Rs that most toddlers do, she used something that sounded more like a V. It was fairly close to the sound of an r, but not quite. I was actually pretty pleased with it, because it was, along with several other clues, a hint that she heard the sounds of language pretty well, was listening carefully and trying to imitate the phonemes she heard from the adults around her.
As she grew, and got more accustomed to the moving of her mouth, maybe even a smidge lazy with it, and also heard other kids more and more, she moved to the W. It's cute, I know they grow out of it, I wasn't worried.
But I have noticed in the last few weeks that she has started using a proper R. It is a little drawn-out, a little carefully over-articulated, almost as if she has a hint of an accent, as she is still becomes more used to the movement that creates that sound. It made me a bit teary to notice - both proud of her progress and a bit nostalgic for the passing of the next-to-last of her toddlerisms.
Perhaps she'll still say "lellow" for a while, yet.