potty
n.a small bowl that children use as a toilet while they are learning to stop wearing diapers. It is usually made of plastic and sits on the floor.
n.a small, portable bowl used for toilet training young children. Often used in the context of early childhood development and domestic routines.
“The toddler is learning how to use his new potty.”
“Parents often keep a plastic potty in the bathroom to help their children transition away from wearing diapers.”
“While some families prefer a seat that attaches to the main toilet, others find that a standalone potty provides the child with a greater sense of independence during training.”
Commonly used in the phrase 'potty training' to describe the process of teaching a child to use the toilet.
From pot (“chamberpot”) + -y (diminutive suffix).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.