Tess says "Momma". Aren't you impressed? She's a genius, we're quite sure.
Of course, she doesn't seem to really know what "Momma" means. Momma is not her name for me...Momma is a plaintive wail of need...it comes when she is hungry, or sick of her carseat, or bored and wants to be picked up. Typically she will start to fuss a bit, and if that doesn't bring quick results, she'll start to call,,,"ma ma, ma ma" slowly and purposefully.
She never says it when she's happy,,,only when she has a need to be filled. For her, "Ma ma" is a word that fixes what's wrong.
Maybe she knows the meaning after all.