potty-train 
verb [with object]
Train (a small child) to use a potty: he’s just been potty-trained...
- Also worth looking out for are novelty chamber pots often made in the form of animals which were designed to potty-train small children.
- It's important not to punish potty-training children or show disappointment when they wet or soil themselves or the bed.
- Some parents try desperately to potty-train their children much too young, and may think not only that they have succeeded, but also that they, the parents, have made a great achievement.
- substantive
- substantive law
- substantively
- substantiveness
- substantive rationality
- substantivism
- substantivist
- substantivity
- substantivization
- substantivize
- substantize
- substate
- substation
- substellar
- substituend
- substituent
- substitutability
- substitutable
- substitute
- substitute bench
- substitute broker
- substitute brokerage
- substituted service
- substitute feeding
- substitute fiber