Tot (noun)

A young child, a small amount of liquid, or a small quantity of something.

Origin:

The word tot is a shortened version of the word "total" or "totality" which means the entire amount or quantity, in the later 17th century it is also used to refer to a young child or a small amount of liquid. it is often used as a term of endearment for a young child.

Examples:

1. The tot was only three years old but already knew how to count to ten.
2. I had a tot of whiskey before bed to help me sleep.
3. The tot of water was enough to quench my thirst.
4. The teacher had a hard time controlling the class full of tots.
5. The parents were delighted to see their little tot take her first steps.